I usually go barefoot indoors but the other day the stone floors suddenly got colder, I didn't think much about it at first, not until I noticed that my feet were so cold I couldn't actually feel them - they were just stiff lumps at the end of my legs. Ick. So I put socks on. And then sandals.
It wasn't pretty, but the cats don't judge and it did give me a good laugh every time I passed a mirror ;)