I've been doing pretty well with making my commuting goals even though we're going through a brutally cold spell in the Canadian prairies. I have only driven to campus once in the new year. I have worked from home a couple days more than absolutely necessary, though.
At this point, I'm feeling pretty proud of myself because commuting has been much easier for me this winter compared to last. Overall, my fitness is better, and I'm getting the hang of dressing for the extreme cold we have here. This morning, the temperature was -18F with a -33F windchill, and I had no idea it was quite that cold until I checked the weather when I got to work. Granted, the wind was a partial tailwind and that makes a huge difference when it's as cold as it gets here.
2010 Scott Speedster Limited/Bontrager Inform RL
2008 Cannondale Rush 2 Feminine/Terry Butterfly
2005 Cannondale F400/Terry Butterfly