Almost forgot - check out and than check out again the rental car before you leave the lot. You don't want the rental car breaking down half way to Laughlin. If you are going to rent a car - get a large one. A large one has or should have a bigger engine; less chance for overheating while running the air conditioner. If you are going to make a run to Laughlin - buy a half dozen of water bottles and throw them in the trunk at the same time checking the air in the spare tire. Best, Jim