Here in San Diego, it only occasionally drops below freezing. This morning was in the mid-30s, so that would make it a contender for coldest ever commute for me. And I was not prepared, I was only wearing my regular winter outfit of basketball shorts, tech tee, quarterzip pullover, and regular-weight work gloves (and ratty old sneakers and nothing-special socks). If I knew how cold it really was out there, I would have added a long-sleeve cotton midlayer, ski gloves, and a headband for my ears.