First commute back from a 2-week vacation. 18F/-8C degrees. I do this
every year: I got 100 yards down the road and realized I should have worn turtle fur on my neck.

Otherwise I was comfortable.
Wife and I went to Scandinavia. I have to say, the cycling infrastructure in both Stockholm and Helsinki is amazing. They even have traffic lights for bike routes. Pretty cool... From what I could tell, most riders were obeying them, too.