As last year was the year of Wool for me, I picked up several pairs of wool socks. They keep my feet noticeably warmer, but, there's another benefit...

I'm used to putting socks in the laundry at the end of the day. But... these don't smell. I'm wearing them two days each and saving the laundry.

Haven't tried three days yet, but I'm getting braver every day.

Note that I've got about 5 wool sweaters now (on a rotation, they go under my windbreaker) and have yet to wash them. I feel like I'm living on the edge.

Note I'm typically fastidious with regard to these kinds of things, but it's not needed thus far with wool.