My 2nd week in a row commuting to work 1 day per week. 25 miles each way (about 1:30). I leave about 5:45 and need a headlight for about 30 minutes until the sun comes up. We have nice showers and lockers at work, so it is pretty nice. I just need to bring a change of clothes the day before. I'm going to do this at least once per week, and maybe twice when I don't have a weekdend century this summer.