Only, at least two of the cards we sent out have been returned to us because the little label indicating the delivery address seems to have fallen off. Yet another friend posted a picture of our card sans their address--at least their address label fell off after it was delivered to them.
I don't know whom these sad returned cards were addressed too, so I'm feeling self-conscious, wondering if people think I'm that rude dummy who didn't send them a card this year.
I guess the lesson is check the work of teens who're not into the task that means so much to you.