If your favorite jeans are feeling a little snug thanks to winter messing with your workout mojo, fear not. This routine combines belly-fat-blasting exercises that will naturally pull in your waist and make your muffin top disappear for good.

How it works: Up to four non-consecutive days a week, do 1 set of each exercise back to back. Rest 30 to 60 seconds, then repeat the circuit up to two more times. For the full text of the workout, click here.