Today was my first time skipping a ride because of weather in over 2 years (last time was wind gusts >50 mph). I put on my studded tires this past weekend just in time to get in a day's commute before the snow storm. 4 inches of snow on Tuesday, and the studded tires (Schwalbe Marathon Winter) were awesome! The steep hill on my way home did suck a little more than normal though.
This is my first winter in Ohio, so riding in snow that isn't slushy on the streets is new to me. I moved from New Mexico, where it does get down in the teens (°F), but the wind chill is less brutal. Anyway, yesterday was my coldest ride ever: 5°F, no wind. Overall, it felt pretty good. A little slipping in the snow/ice ruts on the bikepath, but nothing major. On the icy streets, I could hardly tell the difference from normal riding.
Today, however, the winds picked up and the windchill dropped to -13°F (4°F air temp). I feel comfortable with my body layers, but I haven't pulled the trigger on some sort of eye protection. Being new to Ohio, I was concerned about exposed skin at that temp (just around my eyes in my balaclava), so I drove in to work today. Oh well. Hopefully, I'll get something in the next week or two and be unstoppable (short of work being closed anyway)! ;-)