DH and I always do stockings for each other. Usually with a $20 or so limit. It's always fun to see what we can find. I usually have to give DH a list with ideas, but it's fun! I usually put some candy, a few fun toys and maybe a game in for him.
I think he might be getting me a Kindle, so I'm thinking of getting him a new running watch. He's had his eye on it for a while.
We tend to spend most of our $$ on the kids, so we don't do a whole lot!