Looking for a way to add a touch of personalization to your wedding? Add a memory or meaning behind each table number at your reception. It'll help get the conversation going amongst guests who don't know each other, too!
Perhaps it's a little too tacky for a wedding, but you could easily do this for a birthday/graduation/shower. Saves lots of time on sending thank you notes and helps you gather addresses you might not have if you used Facebook or e-vites for invitations!