Sick of doing 100's of sit-ups and not seeing results? This 20-minute at-home ab workout utilizes 6 of the best core exercises actually proven to work your abs better than sit-ups.
See the workout on my website at: https://tone-and-tighten.com/2014/12/6-ab-exercises-that-work-better-than-sit-ups-at-home-ab-workout.html