I am doing my first road trip cross country and hoping to do it in three weeks if not less. Will it work? My first stop will be in Missouri for a family reunion then it is off to Las Vegas for a convention. Those are the primary reasons for going but I would love to do some other stops along the way since I am already there. Any suggestions on this? I have no idea what I am doing. On a side note I will be with one other which will help pay for half of everything. I need advice on gas, time, things to do.