My head. I wear a smaller hat size now, and I can feel my sun hats drooping down. Twenty-five pounds from now, a "regular" woman's hat might fit, instead of the ugly unisex ones.
My fingers. My wedding ring has a spacer in it now so I won't lose it. This is the wedding ring that I wasn't wearing because it didn't fit and I didn't want to get it expanded again. I put it on again last Thanksgiving, which felt appropriate. I guess I did expect this because I certainly remember my ring getting tighter, but I wasn't focused on the fact that it would get looser.
My neck and shoulders. While we were talking before going to sleep last night, Paul commented on how much smaller the space between my shoulders is. One friend I see rather irregularly has pointed out that I have clavicles now.