I had a 35 mile r/t bike commute for a while. I could only do it a few days a week due to the physical toll (hills! and TX heat) and also the time it took out of my day. It was hard to get enough sleep and still be in-plant 10 hours.

My commute now is 31 miles r/t and I haven't done it for over 2 months. My willingness to deal with cold weather decreases when I'm out in it for almost 3 hours a day; and I haven't gotten back on schedule after sleeping late through the holidays. Also working overtime which further cuts into my day.