I use Pqs and they are great. The problem I was having is I am planning on driving from Maine to Texas, again. I know it will take me 3 - 5 days. I don't know what state I will be in each night. I know the generall route we will take, southwest, but the actuall route may change due to weather, construction or whim. Also I don't know where I will be when the need to get out of the car and stretch my legs strikes.