I stayed at school until 9:30 to attend a function tonight. For the ride home it was -18C with a 24kph headwind, coldest ride yet this year. I was pretty comfortable for the ride home which took 68 minutes. About half-way I stopped to put my mitt shells on, and about 4km from home I stopped to turn up the heat on my electric foot warmers. I was amazed to find that my entire route had been plowed, aside from two side streets that never get plowed. If I had to deal with unplowed roads the whole way it would have been a very long ride.
Getting dressed for a long cold weather ride without starting to sweat is difficult. I try to move fast and that's when I get a little careless, like forgetting to latch my trunk bag in place. I heard it bouncing around and stopped to lock it in place. The battery in my main headlight gave out on the way home so I needed to switch to the backup. I charged the pack last night but only got 20 minutes on high power before it fell back to a lower setting.
I'm impressed with my electric foot warmers. I wore just a thin wool sock and my feet weren't at all cold. Normally riding in these kinds of temperatures my toes would be quite cold and red by the end of a ride. The cables and battery packs are a pain, but will be worth the trouble if my feet can stay warm all winter.