Q: My spouse and I want to take our dog and two cats on a month-long trip across the United States in our 30-foot recreational vehicle. The dog is no problem, but we are concerned about whether this is feasible with the cats. What’s your advice? A: Your family can make this work, but only if the cats are amenable. I suggest you first take an overnight trip with them to be sure they enjoy traveling as much as you do. Assuming your recreational vehicle, or RV, is a motor home rather than a travel trailer you tow, you’ll need to confine your cats while you drive so they don’t venture under the brake pedal or get thrown around if there’s an accident. When you leave your pets alone in the RV, make sure the temperature there is safe for them. Like a car, an RV can quickly become an …