We sent out our invitations a couple weeks ago. We've been getting our RSVP's back in the mail and I wish I could go back and re-do them! First, make sure the "I'm coming" and "I'm not coming" portion is VERY different from one another. We did "I/we can't wait," and "I/we can't attend." Many people are checking the wrong box!! We think it's because they are too similiar. Also, put a little secret number on the back of each RSVP so you know who sent it back. We've had a couple with no names and we have NO idea who they came from. Just thought I would pass that along to anyone who hasn't sent theirs out yet!