Budget Rental Car has a FastBreak program that allows you to put your profile information in their program.  You can also pick a GPS, fuel options ahead of time.  Then when you get to the airport, especially some of the larger airports, you get dropped off at your car or a screen that tells you which car to go to.  You get in the car, show your drivers license as you leave and you are on your way.  Clearly the easiest plan out there.  Also as a FastBreak member, you can ask for a different car if you don't like the one they picked for you.  At the smaller airports, they have a special Fast...