Medicine
Approved Kennel or carrier
Litter Box w/disposable bags
Food and water bowls
Food
Cold Water
Treats
Chew Toys
Stain remover (Just in case!)
Plastic bags, or litter box/scoop
Grooming supplies
Towels
Comfortable bedding and blankets

Collar and leash(es)
Collar Tags with name and a reachable phone number
Recent photo
Recent shot records
International permits (if necessary)
Local Veterinarian and hospital near your vacation site
First aid kit
Make sure your pet is housetrained
Do not allow your pet to disturb other guests
Be sure your pet does not get out of control
Know and obey the owner's rules
Always pick up after your pet