Fifty-two cards. Four suits. Two colors. Three faces, the tens, the aces. Shuffle. Deal. How's your hand? No good? Call a mulligan. Shuffle. New hand. Better? Worse?
With a good shuffle, odds are your deck is in an order that has never existed in the history of cards, let alone those cards. The variables (number and suit) and the shuffle combine in ordinary ways to create extraordinary results. It's a handy idea to borrow for creative work.
I like tools that let me shuffle. How easily can I move these things? Sort, spread, stack, rearrange. Email isn't it. Neither is Word. Meetings, definitely not. Shuffle is why I'm not a sticky note guy. Index cards have shuffle.