Fall Wedding idea - Guests put fingerprints on a tree as a guestbook! Its already framed and ready to be hung as wall art for years to come! Great idea, I love the fall colors! From Etsy and the name of the shop was yourkeepsakeco from Arlington VA.
Number RSVP cardS and log who has which number on a spreadsheet. Easiest way to track who still owes you an RSVP. When you don't get them back (and there will be many that you won't, its just how it goes) you know exactly who to confirm with.