So when I sent out my save the dates I very carefully made sure I addressed only invited guests. Our venue can only hold 100 people max so anyone not in a relationship was invited as a single guest, with only their name listed on the envelope. I already ordered my invitations (i have them in hand) but I did not add the "_ seats reserved in your honor" line. Now i regret this since it appears people do not understand they don't automatically get a + 1. Would you add something to the RSVP card? Write something on the back question mark inside the envelope? Get another insert? Or do nothing at all?