That said, they are pretty effective. I can feel my bum and my legs tightening with every one that I do, and they take little to no effort. I really love resistance training since I can just pick up my bands, no matter where I am in the house and go to it. It's so easy!
They'll definitely be coming with my to Chicago for BlogHer'13...you know...for all of that down time that I'll have (har har)