R.
I have 3 trained and 2 to go and one on the way. I like to wait a little longer until they are 2 1/2 years old even 3...I like for them to use the regular stool and be able to pull their own underware up/down by themselves. And when they are ready I just go commando style (I usually train in the warm months of summer) no diapers, pullups or underware-not even at night or on outtings-(well they do wear underware on outtings) my experience with my kids is that they learn faster when they are older and they are not confused by the back and forth of diapers and pull-ups...but I am a stay at home mom so it is easier for me to spend all day wiping up pee/poop...Much success and stick with it what ever you decide