Before Your Pet Comes Home

What Not to Buy Before Adopting a Pet

Preparing for adoption means covering daily care and safe transport, not buying every pet product in advance. You will learn which supplies to buy before pickup, which can wait, and which are better left off your list.

Paaw Editorial Team
Paaw Editorial Team
Danielle DeFazio
Danielle DeFazioHead of Customer Success at Paaw
Published Oct 4, 2026 · 15 min read
A dog and a cat resting together at home.
Photo by JacLou- DL · pexels

You want your new dog or cat to come home to everything they need, but a full shopping cart is not the same as being ready. Some supplies belong on your pickup-day list; others depend on the animal you actually adopt. Here is what to skip, what to confirm with the shelter, and what you need before your pet walks through the door.

Key takeaways

  1. 1Buy supplies for safe transport and daily care before pickup, but wait on expensive extras until you know your pet's size, habits, and needs.
  2. 2Ask the shelter which food, litter, equipment, and treatments your pet already uses before you shop.
  3. 3Start with a modest supply of your pet's familiar food rather than buying a new diet in bulk.
  4. 4Give a newly adopted cat simple, accessible litter boxes before investing in an automatic system.
  5. 5Avoid punishment-based training tools, and check with your veterinarian before buying supplements or parasite treatments.

What should you not buy before adopting a pet?

Skip the giant bag of unfamiliar food, gear chosen from a photo, expensive beds, automatic feeders, automatic litter boxes, and big toy bundles. Leave supplements off the list unless your veterinarian has recommended them for this animal. These purchases can wait without leaving your pet short of basic care.

Buy for the first few days, not for an imagined version of your pet. A dog who loves a bed at the shelter may prefer a washable mat at home. A cat may refuse the covered litter box that looked perfect in your bathroom.

Item or categoryDecisionReasonWhat to do instead
Basic bowls and safe transport, dogs and catsBuy before pickupYou need them immediately.Choose washable bowls and confirm a secure transport setup.
Familiar food, dogs and catsBuy a modest supplyRoutine helps you avoid an abrupt diet change.Ask for the exact formula and feeding instructions.
Fitted walking gear, dogsConfirm and buy before pickupPoorly fitted gear can allow escape.Get measurements and have staff check the fit.
Accessible litter boxes and familiar litter, catsBuy before pickupYour cat needs a usable bathroom on arrival.Start with simple boxes and the shelter's litter.
Bulk unfamiliar food or treatsWaitTolerance and dietary needs are not yet clear.Try small quantities after checking suitability.
Expensive beds, toy bundles, and gadget systemsWaitPreferences and practical needs vary.Use washable bedding and a few suitable toys.
Shock collars, prong collars, and punishment toolsAvoidThey can cause pain or fear.Use reward-based training and fitted equipment.
Unapproved supplements or parasite treatmentsDo not buy without guidanceSuitability depends on species, health, and prior treatment.Review records with your veterinarian.

Waiting does not mean withholding something your pet needs. If the rescue tells you a senior dog needs supportive bedding or a cat needs a low-entry litter box, arrange it before arrival. The distinction is between a known need and a guess.

Keep optional purchases unopened until you have confirmed the match and checked the return policy. Personalized items, opened food, and used equipment may be difficult or impossible to return.

What do you actually need before bringing a pet home?

You need a way to get your pet home safely, feed them, manage bathroom needs, and give them somewhere quiet to rest. You also need to secure doors, windows, medications, cleaners, and loose cords. Making the space safe often matters more than adding another product.

Before shopping, ask the shelter what comes with the adoption. Some provide a collar, a small food supply, or medication; others do not. Confirm your pet's measurements, current food and portions, litter type, identification details, and written medical instructions.

For a dog, have these basics ready:

  • A secure transport arrangement agreed on with the rescue, such as a suitable crate or vehicle restraint.
  • A properly fitted collar or harness, a leash, and an identification tag with your phone number.
  • A modest supply of current food and separate food and water bowls.
  • A quiet resting area with safe, washable bedding.
  • Waste bags and a cleaner intended for pet accidents, used according to its label.
  • A few size-appropriate toys and a plan for supervised bathroom trips.

For a cat, start with:

  • A secure carrier that closes firmly and fits the cat.
  • Current food, washable bowls, and fresh water.
  • Accessible litter boxes, familiar litter, a scoop, and waste disposal supplies.
  • A quiet starter room with a hiding place and washable bedding.
  • A stable scratching surface and a few supervised play options.
  • Updated microchip contact information and, if using a collar, a properly fitted breakaway collar and identification tag.

You probably do not need an elaborate feeding station. Plain stainless steel or sturdy ceramic bowls are often enough. Choose bowls that are easy to wash, stable on the floor, and free of chipped surfaces or sharp edges.

The ASPCA's general dog care guidance covers basic feeding, housing, and identification needs. For a room-by-room shopping plan, use the essentials to buy before bringing your dog home or the essentials to buy before bringing your cat home. Adjust either list to the animal's known needs rather than buying every possible extra.

Should you buy pet food and treats in bulk?

Buy a modest supply of the food your pet already eats, not a large bag of a new formula. About a week's worth is a practical starting point when the food is readily available. If your pet uses a veterinary diet or a hard-to-find formula, arrange enough to avoid running out.

Ask for the exact product name, life stage, texture, portions, and feeding schedule. A brand name alone is not enough because one brand may sell many different recipes. Find out whether the shelter is sending food home and whether any diet change is already underway.

Age and medical needs matter more than words such as “premium” or “natural.” Puppies and kittens need food appropriate for growth. A pet on a prescribed diet should stay on that plan unless the veterinarian managing their care tells you otherwise.

For most healthy pets, a food change works better as a gradual transition than an overnight swap. Many transitions take about a week, but a sensitive stomach or medical condition may require a different plan. Learn how to switch your pet's food gradually, and pause to ask your vet if vomiting, diarrhea, or poor appetite develops.

Do not assume refusal to eat is just pickiness and keep buying new flavors. Call your veterinarian if a cat has not eaten for about 24 hours, sooner for a kitten or an unwell animal. Repeated vomiting, marked weakness, or other concerning signs need prompt veterinary attention.

  • Start with one small package of treats suitable for your pet's size and diet.
  • Use part of the regular food allowance as training rewards when your pet enjoys it.
  • Avoid introducing several foods and treats at once, which makes stomach trouble harder to trace.
  • Keep the food label and storage instructions so you can check dates and identify the product if needed.

A raw diet is not a default upgrade. The FDA warns that raw pet food can expose pets and people to harmful bacteria. Supplements are not an automatic improvement either. Before changing the diet, learn to read a pet food label and ask your vet about your animal's needs.

Which pet supplies need measurements before you buy?

Harnesses, collars, carriers, crates, clothing, and vehicle restraints need more than a breed guess. Two dogs of the same weight can have very different chest shapes. A carrier labeled for cats may still be too small for the cat you are adopting.

Confirm fitted essentials before pickup, not after the ride home. Ask the rescue for current weight and measurements, then compare them with the manufacturer's sizing instructions. If the animal is still growing, choose suitable adjustable gear, but do not buy something oversized enough to slip off today.

  • Collars and harnesses: Check the neck and chest measurements required by that particular design. Ask staff to check for escape risks, especially with a fearful dog.
  • Carriers: Your cat should be able to stand, turn around, and lie comfortably. Check the closures, ventilation, and handle as well as the dimensions.
  • Dog crates: Choose space to stand normally, turn around, and lie down comfortably. Ask whether your dog is comfortable in a crate before assuming it is the right confinement option.
  • Vehicle restraints: Confirm compatibility with your vehicle and the animal's size. A walking harness is not automatically a crash-protection device.
  • Clothing: Wait unless weather, a medical instruction, or a known need makes it necessary. Fit includes comfort during movement and bathroom trips.

Tell the shelter how you plan to travel, including whether you are driving alone. They may have pickup requirements or recommend a specific setup for an escape-prone animal. Keep a cat inside the closed carrier during travel, even if they cry.

Do not attach a car restraint to a neck collar. Follow the restraint maker's installation instructions, and do not assume a loose crate or carrier is safely secured simply because it sits on a seat.

Check return windows before removing tags, and save packaging until you have checked fit. Optional matching accessories can wait. If you plan to use a dog crate at home, learn how to introduce a crate without stress; owning one does not mean your new dog is ready to stay inside it alone.

Should you buy an automatic litter box before adopting a cat?

Usually, no. Start with simple, appropriately sized litter boxes and the litter your cat already recognizes. An automatic system adds unfamiliar movement, sound, entry height, and space limits before you know whether your cat will accept any of them.

A common starting guideline is one litter box per cat, plus one extra. For one cat, plan for two boxes where space allows. Spread them across useful locations rather than placing both side by side, and make sure another pet cannot block access.

During the first days, keep a box readily available in your cat's quiet starter area. Choose a location away from food and water, loud appliances, and busy foot traffic. An uncovered box often makes it easier to check cleanliness and watch how your cat uses it.

  • Choose enough floor space for your cat to turn around without squeezing.
  • Use a low entry for a kitten or a cat with limited mobility.
  • Confirm the shelter's litter material and whether it is scented.
  • Scoop at least daily and wash the box regularly with mild soap.
  • Keep a simple box available while introducing any new system later.

The ASPCA's general cat care guidance recommends quiet, accessible litter-box placement and daily scooping. A basic setup also helps you notice whether your cat is passing urine and stool normally. Do not assume repeated trips to the box are a complaint about the litter.

Straining to urinate or producing little or no urine needs immediate veterinary attention. This can be an emergency, especially in male cats. Do not spend the evening changing litter or ordering a new box instead of seeking care.

Unscented litter is a reasonable option if it matches your cat's routine or is introduced through a planned change. Avoid replacing the box, litter texture, and location all at once. If you later consider an automatic unit, check its minimum age and weight requirements, safety instructions, and return policy. A device should earn its place by working for your cat, not just by promising less scooping.

Can beds, toys, and pet gadgets wait?

The expensive versions can wait. Your pet still needs a comfortable resting place and daily opportunities to play, explore, and use normal behaviors. Start with washable bedding, a few suitable toys, and a stable scratching option for a cat.

For a dog, a simple mat or folded blanket may work if they do not chew or swallow fabric. For a cat, a sturdy cardboard hiding box can be more useful on the first night than a large activity tower. Remove bedding or toys that your pet tears apart or tries to eat, and ask for help choosing safer alternatives.

Buy small trials rather than a collection. One dog may enjoy a food puzzle but ignore plush toys. One cat may prefer a horizontal cardboard scratcher while another wants a tall, stable post. Watch what your pet actually does before buying more of the same.

  • Supportive beds: May be worth arranging early for a pet with a known mobility problem or a veterinary recommendation.
  • Climbing furniture: Can help cats use space, but it needs stable footing and reachable levels. A senior cat may need steps rather than tall jumps.
  • Water fountains: May encourage some pets to drink, but they need cleaning and filter maintenance. Keep ordinary fresh water available.
  • Cameras: Can show what happens when you leave, but they cannot relieve distress or replace a caregiver.
  • Automatic feeders: May help with scheduling once you know the diet and portions. Check that each animal can access the right food and that someone notices missed meals.

You can provide enrichment without a large purchase. Try short sniffing walks, brief reward-based practice, or suitable food-search games using simple dog enrichment ideas. For cats, supervised play and safe resting spots can help you create useful climbing space for your cat.

Introduce new items one at a time so you can see whether they help. No gadget replaces bathroom breaks, fresh water, interaction, or someone checking that your pet is well.

Which training tools and chews should you avoid?

Leave shock collars, prong collars, and other tools designed to punish through pain or fear off your shopping list. A newly adopted dog needs to learn what is safe and what you want them to do. Adding discomfort can make that learning harder and may worsen fear.

Start with properly fitted walking equipment, small rewards, and manageable practice sessions. Reward behaviors you want, such as checking in with you or standing calmly while you attach a leash. Use distance, gates, and supervision to prevent problems rather than waiting to punish them.

If your dog lunges, panics, guards items, or threatens to bite, buying stronger equipment is not a complete plan. Speak with your veterinarian and a qualified reward-based behavior professional. The ASPCA's dog behavior resources explain common problems and can help you identify the kind of support to seek.

Chews need the same caution as training gear. Very hard objects, including bones, antlers, and hard hooves, can damage teeth. A toy that is suitable for a small dog may become a swallowable object for a larger one.

  • Choose toys and chews intended for your pet's size, age, and chewing style.
  • Supervise new items until you know how your pet uses them.
  • Discard pieces small enough to swallow and toys with loose parts.
  • Put cat wand toys, ribbon, yarn, and strings away after supervised play.
  • Keep batteries, magnets, and small household objects out of reach.

No chew is completely risk-free. Supervision helps, but it does not make a brittle or easily swallowed item safe. Ask your veterinarian for options if your dog breaks teeth, gulps chews, or has a history of swallowing objects.

Suspected swallowing of a battery, magnet, string, or sharp object warrants an immediate veterinary call. Do not pull string hanging from a pet's mouth or anus, and do not induce vomiting unless a veterinary professional tells you to.

For everyday practice, use the reward-based dog training basics before spending money on specialty equipment. A simple setup used thoughtfully is usually a better starting point.

Should you buy supplements or flea treatments in advance?

Wait until you have the shelter's treatment record and veterinary guidance for your particular pet. That includes calming supplements, vitamins, dewormers, flea and tick products, and medicated shampoos. “Available without a prescription” does not mean suitable for every animal.

Ask for the names of products already given, the dates, and the next due dates. Your new pet may have received a long-lasting parasite treatment shortly before adoption. Adding another product without checking could duplicate treatment or create an unsafe combination.

Age, weight, species, health conditions, and other medications can all affect what is appropriate. The AVMA's flea and tick guidance explains why product selection and correct use matter. Your veterinarian can help choose prevention for your household and location.

Some dog flea treatments are dangerous to cats. If a dog-only product was applied to your cat, or your cat may have contacted a recently treated dog, call a veterinarian or emergency veterinary hospital immediately. Do not wait for tremors, drooling, or seizures. Have the packaging available and follow the veterinarian's instructions.

Do not assume dividing a larger animal's product makes it suitable for a smaller one. Never substitute a dog product for a cat product. Follow the label and veterinary instructions about application, household contact, and when pets can interact again.

Calming products also deserve a pause. A pet hiding on the first evening may need a quiet room and fewer introductions, not a supplement. Persistent distress, pain, or sudden behavior changes need assessment rather than a shopping experiment.

  • Collect the medical and treatment records before pickup.
  • Ask the shelter to clarify any missing medication instructions.
  • Schedule veterinary follow-up based on the pet's needs and adoption requirements.
  • Bring product packaging or photos of labels to the appointment.

Do not delay prescribed ongoing treatment while waiting to shop. Confirm you have the medication and written instructions needed at handover. If the supply or directions are missing, contact the shelter or prescribing clinic promptly. You can prepare for your pet's first vet visit without buying a medicine cabinet in advance.

How can you avoid wasting money on pet supplies?

Shop in stages, with each purchase tied to a real need. You do not have to wait a fixed number of days before buying something useful. You do need enough information to know why you are buying it.

  1. Confirm the match. Ask about size, diet, behavior, medical needs, and supplies included with adoption.
  2. Buy pickup essentials. Arrange transport, fitted walking gear for a dog, litter supplies for a cat, food, water, identification, and a resting area.
  3. Observe during the first week. Notice where your pet rests, how they play, whether gear fits, and whether bathroom access works.
  4. Add items when a need appears. Buy a better scratcher for a cat using the sofa or a suitable food puzzle for a dog who enjoys searching for meals.
  5. Reassess before stocking up. Early preferences can change as your pet settles in. A first-week habit is useful information, not a permanent rule.

Use small packages and individual toys for trials. Check return windows, exclusions for used items, and whether opened food can be returned. Keep receipts together so a poor fit does not become an expensive item in a closet.

Borrowing can help with items such as a carrier, but inspect and clean equipment before use. Reject cracked plastic, frayed straps, broken latches, rust, or missing parts. If the item came from an animal with a known contagious illness, ask your vet whether it can be disinfected safely before bringing it home.

Leave room in the budget for care, not just equipment. Food, litter, preventive treatment, veterinary visits, grooming, and help during travel can cost more over time than the initial shopping trip. Review the pet ownership costs beyond the shopping list before spending your cushion on gadgets.

Insurance is a separate timing decision because waiting periods and pre-existing condition rules can affect coverage. You can compare pet insurance with emergency savings and learn when to consider pet insurance while you are arranging adoption. Neither choice guarantees that every veterinary bill will be covered.

Your home does not need to look like a pet store on day one. It needs to be safe, usable, and ready for the animal coming home.

Frequently asked questions

Is it okay to buy pet supplies before my adoption is approved?

Yes, but stick to general supplies you can return or use for several possible pets. Washable bowls and cleanup supplies are less risky than a personalized collar or a large crate chosen for one dog. Wait for a confirmed match before buying size-dependent equipment, specialty food, or medical products. Ask the rescue when approval and pickup usually happen so you have time to arrange essentials. Do not bring an animal home without safe transport simply because you were waiting to shop.

Can I use secondhand pet supplies safely?

Often, yes, if the item is intact, appropriate for your pet, and can be cleaned properly. Check carriers and crates for secure latches, sharp edges, cracks, and missing hardware. Wash bowls and washable bedding before use, and follow the manufacturer's cleaning instructions. Skip chewed toys, damaged restraints, and items that retain strong odors or cannot be cleaned. If the previous animal had a contagious illness, ask your veterinarian about disinfection. Unknown history is a reason to be cautious, especially with porous items.

Should I buy puppy pads for an adult rescue dog?

Not automatically. Many adult dogs do better with frequent, supervised outdoor bathroom trips and rewards for going outside. Ask the shelter about the dog's current routine before adding pads, which can create another indoor surface they learn to use. Pads may be useful for a specific mobility problem, medical need, or established indoor toileting plan. New accidents can reflect stress, a training gap, or illness. Straining, blood in urine, or a sudden change in bathroom habits needs veterinary advice, not just more pads.

Does a newly adopted dog or cat need clothing?

Usually not, unless there is a specific weather-related or medical need. Some small, thin-coated, or older dogs benefit from a well-fitted coat in cold weather. Most cats do not need clothes, and clothing can restrict movement or cause distress. Ask about your animal's needs rather than buying outfits in advance. If clothing is recommended, make sure it does not interfere with walking, breathing, or bathroom trips. Do not use an outfit instead of prescribed wound protection without checking with the treating veterinarian.

Can I use household dishes instead of buying pet bowls?

Yes, plain household dishes can work if they are food-safe, stable, easy to wash, and free of chips or sharp edges. Choose a size your pet can use comfortably, and avoid fragile dishes that slide or tip easily. Keep food and water in separate dishes and clean them regularly. You do not need a decorative feeding station to provide good care. If your pet has trouble eating or drinking from a particular shape, adjust the setup and ask your vet if the difficulty persists.

Should I buy grooming tools before I know my pet's coat type?

Wait on specialty grooming tools until you know the coat and how your pet tolerates handling. A tool that suits one coat may pull, irritate skin, or do little for another. Ask the shelter about brushing, shedding, mats, and previous grooming experiences. Avoid buying medicated shampoos without guidance, and do not cut tight mats with scissors because skin can be caught inside them. Long-haired pets may need prompt grooming help, so waiting on purchases should not mean leaving painful mats untreated.

Is pet insurance something I should wait to buy?

It is worth researching before or around adoption rather than treating it like an optional gadget. Policies commonly have waiting periods, and conditions that exist before coverage starts may be excluded under the policy's rules. Ask insurers when you can enroll the animal and when each type of coverage begins. Compare deductibles, reimbursement rules, exclusions, and ongoing premiums. You may still need savings to pay a clinic upfront or cover excluded care. Insurance does not replace prompt treatment or guarantee coverage for a particular bill.

Sources

Danielle DeFazio
Danielle DeFazio
Head of Customer Success at Paaw

Danielle DeFazio is the Head of Customer Success at Paaw. She works with hundreds of shelters and rescues to help their animals get seen by the right adopters.

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