Fiancee and I have a relatively big budget to work with. We want to give all our single friends +1s, but we're not sure how to go about addressing the envelopes. We're also listing each guest's name on the RSVP cards (to avoid confusion about who's invited). How would we go about wording for the +1, since we wouldn't know the name of the +1? I've been told to avoid writing guest or +1 on invites, so I'm kind of stuck on how to go about this. Thanks for any help you can offer.