At my own place, I am nekkid 99% of the time. When I stay at my parents’ or a friend’s, I wear PJs.
I figured out who to keep my feet warm without socks. I have a woven throw I tend to wrap around my shoulders when I’m chilly. If I throw a fold of that around my head, I get toasty warm in no time. Lots of heat lost through the skull; keep it in, and there’s enough to go all the way down to the toes.