J.R.
I don't know of anything that really works because every kid is so different. I must say though that you are starting pretty early and I commend you for that. Most boys aren't ready until they are about 3. I do recommend teaching them how to pee while sitting down. Once they are older and have control of themselves they can stand up if they want to. All they have to do is spread their legs apart and lean forward a little bit and it goes right where is should instead of on the floor.