I've been saying this for a while now. I've been a woman's size 8 since I was 12, and now I'm having to buy 7.5. And my feet didn't shrink because I still fit into all my old size 8's. It might not be as bad as clothing (half a size isn't a whole lot) but it will catch up eventually. And trying to find winter boots that fit in the calves is like trying to baptize a cat.