My job was recently moved due to a hospital merger, and I now have a 15-mile commute each way to work and it is on a road with a lot of traffic. (Previously I had a 10-minute walk, so you can imagine I am not happy with now having to drive 25 minutes each way). This is a bit long for a bike commute, particularly on weeks that I work evening shift and even more so this time of year so I have not attempted it at this point (my speed, or more precisely the lack thereof, is also a factor). I am currently renting the place where I live now, and looking to buy something closer to work in the spring (dreading the winter commute this year though). My question to you guys is, what do you consider the outer limit for a reasonable bike commuting distance? I was thinking 10 miles or less, and obviously closer is better but some of the closer neighborhoods seem a little crowded for my preferences (I would rather not be where the houses are practically on top of each other like I am now) so the challenge will be finding the right compromise between my desire for convenience vs. my desire for space/privacy/quiet. I would like to commute by bike as much as possible and not have to spend too much time driving places. I am interested to hear everyone else's opinion on how far is too far.