This is more of a warning for anyone who hasn't sent out invites yet. Have them weighed before you send!! I took my box of 100 invites to the post office to mail since they wouldn't fit in my box, and I had them weighed just to make sure. They were all over by 20 cents! We already sent ones to our parents without any trouble so we figured they were fine. Of course they were out of 20 cent stamps, so I had to put two 10 cent stamps on all of them. It looks a little silly, but at least none of my guests will get charged.