I woke up this morning and everything was slightly sore. I really did do a lot yesterday. I had planned to go to the Y and do a quick 30 minutes of abs and maybe run a mile or two, but on second thought, I figured Why go to the Y when I can do that at home?! Oh, and I didn't run.
So, I did this:
6 sets of regular crunches (40) and reverse crunches (40)
That's 480 crunches total. It took me 15 minutes.