I have commuted the past three winters and this is the fourth. I like commuting year round. Below zero, starting in the dark keeps me motivated for the day. I have slowly begun to use my X-country ski machine again. I use the Bow Flex every other day mostly for core with some upper body thrown in. I do some other assorted things. I'm a beginner at Tai Chi and do arms and shoulders on parallel steel bars ( isometrics ). I try to do some stretches each day. I'm not into the mileage lots of you folks are. I seem to be steadily going that way though. Safe touring and commuting to y'all.