Sour shoes

Did anyone else have trouble with invites not being delivered?! I know of 2 that never received theirs so far(my sister and uncle). I've received a few rsvp's back but am nervous as to how many of the...

Tomorrow night I'm helping my friend send out her invites. I've read tricks on how to number rsvps so that the ones without any names match up the number. How exactly does this work? Tips? So, I can...