Powerhouse Hit the Deck ($20) is a new workout system that you can do "anywhere, anytime, with no fitness equipment needed." It's made up of 35 color-coded cards and an interval timer. Each card has a strength/cardio exercise on it, and its color denotes the exercise's level of difficulty. The levels are broken down in a cute way - no sweat (easy), I'm glistening (medium), and sweating buckets (hard) - and there are five warmup/cooldown cards too.
Using the Powerhouse deck is pretty simple:
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