About the same time commuting for me as well. So far I've driven three times since I started bicycle commuting, all times when I had meetings in the next town after work, upping the distance to something beyond what I can reasonably do in the time allotted. I can't see going back to driving regularly, to the point that I am planning to sell my car, and figure out a way to make the out of town meetings work or go away. Still won't be entirely car free, will be keeping my wife's car, but we have been reducing mileage there as well.

So far, no flats on the commute (knock wood), and the pretty marginal weather around here has not deterred me. I need to sell the car before winter, so i don't get tempted to backslide then!