Here's a fun game to play on your own or with a partner. Can you get through a whole deck of cards?
If you are more than one, take turns turning over a card and doing the exercise (eg. 10 jumping jacks for the 10 of hearts). If you turn over a picture card (Jack, Queen, King, Ace), you can nominate another player to do an exercise of your choice.
If you are on your own, you can take a break when you turn over a picture card (you will have earned it!)