1. Pet Peeve: I only need a car for a few hours, yet the minimum rental is a day.
What to do about it: Sign up with a short term rental service like Zipcar or Hertz on Demand. With Zipcar, you can pick up and return cars in strategically located lots in dozens of large US cities and around college campuses. Among the big guys, Hertz On Demand users can rent cars for as little as $5 per hour or $60 per day. Both services include gas, insurance and maintenance.
Read the rest of this post on my Seat 1A blog on Forbes.com