The Self-Arranging Deck
First, separate all the cards by suit. Line up each suit in this order: Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K.
Next stack the packets on top of each other. Starting with the top card, deal off 21 cards, making sure that when you lay them down they stay in the same EXACT order. (Normally when you deal, you pile the cards one by one onto each other. This reverses their order. You cannot do that this time.) Put the 21 cards on the bottom of the pile that's left over.
Now have somebody cut the deck at any spot, 9 times. Make sure all of them are complete cuts or the trick won't work. After they have finished, deal the cards into thirteen piles. Start at one side, left or right, and deal thirteen cards across. Deal the next thirteen onto those. Repeat this two more times, until all 52 cards have been dealt.
After you are done have someone turn over all thirteen piles. Each pile will have the same card denomination in it.