NUMBER your rsvp cards because some people write a no where they should put their name and you have no idea who it is! Once you get them back in the mail, go into your excel spreadsheet and mark them coming or not coming. Then you also dont have to worry about losing the cards and you can easily tell who still owes you one
I don't have a wedding board (because I'd be crazy if I did), but just this morning Josh went "Why is there a wedding dress on your Pinterest" and my first thought was, "OMG YAY He reads my boards!" (not, oh eff, he thinks I am planning a wedding). It wasn't a wedding dress btw, but haute couture. Thank god.