I picked up a pair of MicroSpikes and NanoSpikes at the end of last season as retailers were clearing out their winter gear. These are awesome for walking in the snow and ice — I wasn’t sliding around at all.
The negative five degree temps (negative thirty with windchill) taught me that I’m not quite done purchasing winter gear — my balaclava kept most of my face warm, but ski goggles for the little bit of skin around my eyes away from the blowing ice.