Let me just say, I did in no way want to do this right now. Maybe in 6 months. NOT now. I thought it was imporssible to find small enough unders that wouldn't just make his pants fall down!! It was Stacy that pushed me into this and she was so right. When your kid is ready - be ready. So it was pretty much the easiest thing. As long as he could sit on the "little potty" he would go 50 times a day and retrieve his M&M and be happy about it. His friends quickly learned of the Peanut Butter M&M stash and used his little potty frequently too. It was just one big potty party! But really he was the cutest thing in the world. His skinny little butt is adorable. You just want to pinch his little cheeks and I do.. quite often! :) Love this tiny BIG BOY!