We are down to one car currently and it's big kid hauler, in gas we saved about $400 dollars last year. I tried to convince the wife that savings could buy me a better commuter bike, I was unsuccessful. I eat 1-2 extra granola bars every day I ride and I don't change clothes to ride to work (I work the night shift so I just change into work clothes at work). Of course I don't ride to save money, or to get in shape, that's all just a nice bonus.