My daily commute takes about an hour and a half, total. On the bike, it takes about four hours, total. The difference is that I put over two hours on the bike, which I try to do three times a week anyway. The only real "loss" of time is thus the time spent waiting for the BART train, or going a little out of my way to get to the stations. Granted, the ride through Fremont is neither beautiful nor ideal for training, but it's saddle time all the same. I (and my girlfriend) generally get frustrated by driving an hour home just to get on the bike and exercise for two more. Why not combine them?

- Warren