Thanks for all of the replies. I am aware there aren't rules, but just wanted to know what most people do. As a military guy who was formerly a military child, I've lived all over the states. If I inlcuded those states, all I'd have left is everything north of Connecticut and Rhode Island, Hawaii, and a handful of interior states. For that reason, I just use my map for places I've used an RV overnight, not including Pilots and Walmart parking lots. My two big trips to VA and TX did most of the damage.