When it comes to pets, one month equals one hour. What does that mean, exactly? For each month your dog ages, for example, he'll be able to "hold it" for another hour, up to eight hours [source: Guarr]. That's great news if you've got a dog that's a few years old and you're going very far, but if you've got a bouncy pup and a six-hour stretch, what can you do to keep that that Springer spaniel from springing a leak?
The $49 billion-a-year pet products market includes beef- and smoke-flavored meds for a variety of conditions, but veterinarians insist that asking your pet to hold it, or restraining its need to urinate, is unnatural. The bottom line is this: If you plan on traveling with your pets, have diapers, pads or newspapers handy. Budget some time for bathroom breaks and walks. If pit-stops aren't possible, limit your animal's food and water intake a few hours before travel [source: Vlahos].
Extra pit stops for territorial sniffing and exploration might work well with dogs, but if you're traveling with cats, you'll need a portable litter box [source: Pet Travel Store]. Check with your vet or local pet store for items in your price range, but be warned: Cats may refuse to use unfamiliar litter or urinate while moving in a car.
When carrying your kitty around with you, remember that she's not urinating on the hotel floor out of spite. Sure, it might be a little peeved at you for leaving its favorite scratching post at home, but its behavior probably has more to do with stress than anger [source: Kansas Humane Society]. As with dogs, limit cats' water intake before you travel.
One other reminder: As animals get older, their ability to hold their urine decreases, so more frequent stops might be necessary for your mature pet [source: Washington State University College of Veterinary Medicine].
Let's move on to motion sickness. Don't get woozy!