Ok seriously. I love it. I'm going to learn it. And so far, it is the hardest thing I can imagine undertaking. And once I can do it, I'm going to learn to do it on a unicycle, and I imagine once I do that, Stephen Hawking will appear and call me awesome with his robot talkbox.
Most people use the floor to make card houses:
Cutting a deck with one hand while balancing a card on his thumb:
Surely, this card trick cures cancer: