I did a elliptical interval workout tonight for 16 minutes and a 5 minute cool down. Then, I made the cold, slippery trek back to my apartment and did 2 sets of this killer ab workout!!!
Link to Elliptical Workout:
http://www.fitsugar.com/Cardio-Workout-Elliptical-Intervals-6926664
Link to Elliptical Workout:
http://www.fitsugar.com/Cardio-Workout-Elliptical-Intervals-6926664