I know I still have time but I'm sure it'll sneak up on me, so we are starting to finalize our guest list and think about invites. I have one friend who won't know many other people at the wedding so we want to give her a plus one to help her feel more comfortable and have more fun. She is single so this would be a true plus-one-invite-whoever-you-want and not a significant other we would name on the invite. RSVPs will be done via phone, email, or our wedding website and we aren't planning to have mail back RSVP cards. We also aren't planning to have inner envelopes.
My question, is how do we make sure she knows she gets a plus one? Include a note with the invite that says something along the lines of "you have been invited to bring a plus one"? Call her up and tell her over the phone? Any suggestions? I'm sure I'm over thinking this and there's a very simple solution....