The Free Ab Workout Routine:

Exercise 1 - Lower Body Ab Raises

It doesn't matter how developed, or undeveloped your abs are, this is a good exercise for you. If you can't raise your legs that high at the start, it's okay. In time, you'll have your feet in the clouds!

1. Grab your mat.
2. Lie on your back with your arms to your side.
3. Raise your legs to 90 degrees.
4. Using your abdomen and pushing into the ground with your hands, raise your feet towards the sky, or roof :)
5. Slowly lower yourself, in a controlled movement, back down again. Don't drop your hips down too quickly.
6. Do about 10-20 reps, or as many as you can manage.
7. Rest for 20 seconds between sets.
8. In total do 3-4 Sets.