or cat has their favorite toy with them to keep them entertained. making frequent stops is also a source of entertainment for your dog who can sniff out new and interesting things.
if your cat is leash trained this is also a great time for him to get out of the car and stretch his legs.
make sure that you feed your dog or cat no less than 3-4 hours prior to your trip. this is especially important if you have a pet that gets car sick easily.
at rest stops, make sure to give them plenty of water and always keep pets on a leash. park in the shade and never leave 