Use this Ladder Workout Challenge with burpees and squats as your "morning wake up workout" or as a quick cardio session after weights! It is a great way to get your heart rate up and finish your workout strong! #sponsored by Polar
Another pinner said: This website is AMAZING. It is my workout bible, and best of all, its completely FREE. Tons of workout vids and plenty more to stave off ruts. Most of the routines are between 12-20 mins long and that's all you need.