I joined an online Live Journal club the other week called postcardjunky and I received my first postcards from users in other states this weekend. It's fun... Basically, you get someone's address from the group and send them a postcard. You can make the postcards yourself, grab some freebies from the local store, or even buy some cool ones and send them out.

If you like receiving mail (that isn't a bill) than consider joining.