My invitations were delivered yesterday - yay! But, I noticed they did not come with inner envelopes. I have read when addressing them the outer envelope should be addressed to Mr. and Mrs., or whatever the case may be (i.e. Mr. and Mrs. John Smith), and the names of the guests on the inner envelope (i.e. John and Jane). This may sound silly, but I have several guests who have adult children living with them who are not invited and some guests with plus 1's. How do I address them so the guests know who is invited?