you can do it!! no problem. on the cold days, dress warm. snowy days, lower pressure and bike slower. leave earlier on slower days to beat auto traffic. buy cheap goggles on ebay. a 2 hole balaclava should keep nose covered.
i like your commitment! i think i'll join your challenge and bike everyday too. i've been consistent so far and biked almost everday this winter. ('cept when my bike was frozen one morning, and i had to take the bus). but i plan on biking everyday all winter.
great idea!! come on people!! jump on the bandwagon!!
jim