Mine's a fantastic 11 miles, mostly on MUPs, but with a lot of stoplights I have to wait at. I can only do the ride at most 3 days a week (fiance has school tuesdays and thursdays, I have to watch the kids), but I feel wonderful every time I ride.

There's not much money savings in it, because I still have to pay the car even when i bike (insurance and car payment doesn't change, and it's quite efficient on fuel). Even with buying my bike used, it will still take me about 3 summers to get in the black on fuel savings. Assuming I don't have to spend any more money.

But, the great news is, I went in for a physical on Monday, and the doctor was visibly impressed by my health (blood pressure, heart rate, etc.) I asked if she meant "good for a 32 year old fat smoker?" and she said "no, that's great numbers for anyone!"

That made all of the effort it took to get myself onto the bike as often as possible worth it.