So I decided that I didn't feel like trekking to the gym with DS in this crappy weather, so online YouTube videos it was. I did my 30 Day Shred and then typed in cardio insanity. There was a 40 minute or so workout so I tried it. It was great! She's a little boring because there was no music, but I sweated my butt off. I kept wanting to give up, but I stuck it out and was a hot mess. Exactly my idea of a successful cardio workout. She is a blonde instructor wearing a pink top and black pants. Check it out if you're looking or some good cardio at home.