I just sent my mother our guest list last night so she can start addressing the invitations. I'm totally freaked out now. I thought I was being really clear about how everything should be addressed; I marked when people were single, when dating, when they were living together, and when they were married so she'd know how to address the envelopes (I also put a key at the bottom).
So then she writes me back and asks me if the couple is dating if she should write "and guest" on the inside envelope or the person's gf/bf name. Aah! She's a teacher so she's very careful about stuff like this, but now I'm worried that something will go wrong. I fear that this is how some etiquette mistakes happen...And she lives in VA and will be mailing them from there, so there will be no proofreading from me. This is a little scary!