S.S.
I started my son at 18 months and he was virtually daytime potty trained at 2. We never used pull-ups or anything like that. Whenever we were home we left him naked from the waist down. We also never used a little potty. He straddled the regular toilet backwards until he could scoot up on it the correct way. Without having the sensations of something underneath to catch he perferred not having an accident. We just took him every 15-30 minutes until he could pee on demand. Hope this helps.