I've been thinking of looking into this... With my new car-train-bike commute, i'm only driving 9 miles a day, 5 days a week which means a little over 2300 miles a year.
Unfortunately, i do have to drive to work sometimes (1-3 times a week either to bring supplies into the office or because my legs are tired from a long weekend ride/triathlon) and my girlfriend lives 35 miles away (which can add up).
