Anyone who has had to write a thank you card knows the value of having a friends address. The daunting task of gathering addresses to send out your wedding invitations can take months and you might not even get them all. Enter the adorable rolodex guest book. Kill two birds with one stone and make writing your thank you notes a little easier. Not only do you get your guests addresses and emails… but you get a sweet note from them as well. This is a very cute keepsake that you can actually use after your wedding is over.