OP - Everyone's commute is different so the answers might or might not apply. I would suggest that you just start out with 1 or 2 trip per week and see how it works for you. 41 RT can be a breeze or not depending on the traffic, road condition, lights, etc. For 3 years, my commute was 60 miles RT, 3 times a week and I started out cold. Now my commute is down around 54 miles RT.