In You.0: 50 Tips for Tackling 2014, Men’s Fitness doled out advice on how to improve your body, diet, workspace—even your online dating profile—in the upcoming year. As a bonus, we have a 51st tip that will help you burn fat with cardio intervals, even if you don’t have access to a treadmill or running track. If your fitness resolution is to get lean, make this 20-minute workout a staple in your training routine.