my fiance & i are about ready to send our save the dates! we've always planned on giving everyone a "plus 1" for the wedding even if they aren't in a long-term relationship. but should i actually address the save-the-date envelopes with "and guest?" Or should I save that for the real invitation? It kinda seems too formal to put on just a save-the-date, but then again I don't want people to necessarily think they aren't allowed to invite anyone. thoughts?