I have found that I am quite content walking 30 minutes to work, while driving 30 minutes to work leaves me feeling miserable.
There is something about walking / cycling that makes even the most miserable day at least tolerable. Now my commute is a combined cycle + train journey again, but now I'm cycling through lovely countryside on quiet country roads. I cannot possibly convey how much I appreciate it, I used to be a city boy!
Used to live in the West Side in Los Angeles. Everything took 30 minutes.
Now I live in North Phoenix. 30 minutes is like... FAR. But it's a real joy to drive.