When we moved into our first house we had a big bulletin board in the kitchen I had no idea what to do with. I had a four month old - no pictures to hang, no finger paintings to display. So instead I cut out all the Christmas card pictures and hung them on the board; I've done it ever since.
When we moved into this house I bought a new board - here are last year's cards still decorating the kitchen hallway. It really brightens up a dark corner of the kitchen and, consequently, works for us.