I know I've told you all before, but man do I hate having cold ankles. Well, not all of the time. But when they're being quirky even my knees will hurt unless I manage to keep my ankles warm and snug.
I made myself some yoga socks in sock yarn ages ago, and finally realized that I had just enough of my own shetland/angora handspun to make a second pair. (And they are wonderful. Very soft, and warm without being too warm).
You know the pattern - Yoga Socks from Just Jussi. I altered them from all-over ribbing to be mostly stockinette.