When mine were 18 months old. anytime we were at home no diapers!!! I just put on the cloth training undies and take them to the potty pretty often. And with boys... they love to pee outside . That is how they both potty trained letting them pee out on the grass. It only 2 weeks and they were done. A few times in those cloth undies... trust me they do not like the feel of wet on them. and we did reward everytime a totsie roll for the oldest (his favorite) and smarties for the yougest (his favorite).