I have taken on the task of making my own invitations...225 of them! I am trying to come up with templates so that it will be easy for the bridesmaids that want to help me I made the invitations 5x7 (actually a little less than that so they fit in A7 envelopes easy) and now I'm wondering how big my RSVP cards should be?? Also, should I do it postcard style and save on a second envelope? What else should I be thinking about with this? Please and thanks in advance for any input