Hey guys,
While this thread has been pretty co-constructive and productive so far, please remember there is no need for calling others' posts "stupid". We can all be professional here without name calling.
Aside from that, I remember a magician saying at a lecture how he does his card to wallet for weddings. I don't remember exactly who it was, but the ideology behind the trick was quite interesting.
When he was performing walk around magic at weddings, he would always use the card to wallet as his final trick with the Bride of the wedding. I don't know which method he used, but it was one of many methods in which the card ended up in a sealed envelope inside his wallet.
Now the trick, having the Bride's card inside an envelope, is hard hitting in itself, but I would argue that having it signed definitely makes the effect more personal for the Bride. As many of you have pointed out, signing the card isn't always the right choice, but in a situation like this it does add a bit of an impact, and an added layer of impossibility.
Though that wasn't what I found interesting. The magician first told the Bride that the card has vanished from the deck. He showed that the card had vanished, and explained how the card had traveled to the envelope in his wallet. He took out the envelope, held it up to the light to show there was a card inside. Then he told the Bride, that she had two options. She could either open it now, and show that the card had indeed travelled to the envelope, or... she could keep the envelope sealed. To maintain the mystery and wonder of the magic. Now this, in my opinion, is an extremely personal situation. The Bride might choose to keep that envelope for the rest of her life, holding onto the mystery until she ever decided to open it. Talk about personal.
Just an interesting little story I thought I'd share. Keep up the productivity guys, it's what we strive for.
~Zach
PS : JJ Abrams talks a bit about this mystery aspect as well in his TED Talk:
http://www.youtube.com/watch?v=vpjVgF5JDq8