I used to have a 33-mile round-trip commute. I didn't do it everyday. I probably averaged 3 days per week. I would drive otherwise. I found that level of exercise to help me sleep at night. I also never get sleepy on the bike. I have fallen asleep driving, and don't want to risk that again.

My current commute is only 7 miles round-trip. I don't get enough exercise, and I've had problems getting up in the morning. I ride every day now. Yes, I have a wife, a car, there's a bus available, I could even walk if I had to, but I ride.

Reasons not to ride:

• Weather: I ride in anything
• Sick: Too sick, and I'll stay home
• Tired: I'd rather ride and wake up than drive and cause an accident
• Overslept: I guess I'll be late

I realize I probably have a shorter commute than many, so it makes it easier. Most days I can ride in my work clothes. For the distance I need to travel, bicycling is the easiest way.