Give your body some attention and take up this 30 day abs and squat challenge and boost your core, leg and butt muscles and body strength to the max! Build up your core muscle till you reach your goal on the day!
JUST DO IT!: custom printable workout exampley I like that there are stability ball exercises too (see the last 2 exercises on this example workout)! Workout Labs give full instructions on how to properly do the exercises.