This is a great idea for a 30 minute workout. You can modify it for your fitness level as much as you need
You have GOT to try these moves!
22 Ways to Work Your Abs Without Crunches
So much harder than it looks. Love it! 7 exercises that will have you losing 2 lbs. a week. Do it three times a week, on alternating days, to tighten up everywhere. At the end of the slide show there's and option to watch a video to see how to do each exercise. Awesome. I have a wall! This sequence is legit!!
10-Minute Full-Body Crossfit Workout