These easy-to-make old-window hot houses can be made from recycled materials. Collect old windows, place hinges at the top so when you are finished with the windows you can fold them up, and save them for the next spring.
Let's be honest: crunches aren't the most exciting of exercises. And they're not always the most effective way to tone your abs anyway. If you're bored with your sit-up routine, here are 25 fun and effective moves to mix up your workout and tone your