Something often overlooked is the little bit of water that works into every little space.  As you get ready to head back out into the post blizzard weather--give your bike some time in a warm dry place.  If your bike has ice water in its veins--the shift and brake cables--they may function poorly or not at all.  New lube where the cables run through their housings will slow down the onset of frozen cables.  For bikes with cable routing under the bottom bracket, don't forget to lube that little guide at the bottom of the bike.  Stay safe out there!