Ross Enamait had a nice idea to bring some variety to your conditioning workouts.
Choose a couple of exercises you want to work on. Say dips/pull-ups or burpees/push-ups for example and start picking cards.
Perform one set of burpees for every red card (Hearts and Diamonds) and one set of pushups for every black card (Spades and Clubs).
All face cards (Jack, Queen, and King) have a value of 10. Aces will have a value of 11. Number cards will be face value (ex. 7 of spades = 7 pushups). Jokers are optional, and can be set to any value. For example, a joker could involve 20 reps (of burpees or pushups) or perhaps 50 reps of a different exercise (ex. 50 squats).
Work through the entire deck. Each card requires a set of pushups or burpees, depending on the color.
Your goal is to work through the entire deck as fast as possible. If burpees are too difficult, switch over to a squat thrust without the jump.