I just started my 38 mile round trip on my Trek 2.1 road bike in early August. I'm considering adding a rack and fenders to my Trek 7000 for the winter/chance of rain days, and for hauling clothes back and forth. For now I'm biking in twice a week, but thinking of adding a day or two a week when the weather looks good. Saving $7 a day in gas is becoming addicting!