I'm always amazed when I win an auction, pay $2 or so for shipping, and the key arrives loose in a small white paper envelope (or almost worse, taped directly to the inside of the envelope). It doesn't take a lot of effort to stick a card between a couple sheets of light card stock and then put the tape around that. I guess it's like giving a turn signal at a stop light -- it doesn't cost any more, but there's just no way you're going to get some people to do it

Jim