Im in, though how exactly I don't know. My big obstacle last year was dark, not cold. The beginning of my ride home means negotiating a nasty highway interchange. I have to travel through it on the way in too, but the ramps are routed in such a way and morning traffic volume is light enough that it;s not nearly as scary as the ride home. Anyway, out of fear of getting splattered, I stopped riding once it got dark in the evenings (~4:30).

I did ride to my weekend job as much as possible, and intend to continue doing that this winter.

Thanks for organizing this thread, out_spokin'!