Another favorite Christmas ornament of mine is this one.
It's a little mail box that my SIL made for me back when we were all crafty and stuff.
Every year when I put the Christmas decorations away I jot down a few words on a piece of paper. I've been doing that for years. All those little pieces of paper are folded up and put in in this little mailbox.
One day I hope the kids will enjoy going back and reading them.