Best advice someone gave me that helped a ton, NUMBER your rsvp cards because some people write a note 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 don't have to worry about losing the cards and you can easily tell who still owes you one!
Love this idea for a thank you...
Cute RSVP! I love the letter style!