We just ordered our invitations a few days ago, and now I'm wondering if we ordered things right. Our ceremony and reception are in the same place. We ordered a flat card style invite and got the matching envelopes. We also ordered the matching reply cards and all the envelopes that go with those. Is there a 3rd envelope somewhere? I was thinking that the outer envelope is the one that gets formally addressed, but then the reply card envelope has to come back to us. I hear people talking about using the "inner envelope" to write "John Smith and guest". Help?