I did house training with the little dogs the same as I did with the big ones. Never used piddle pads or anything with them. Although I did have the luxery of getting puppies in the warmer months so if I had to stand outside for 20 mins. for the pup to go outside to get he praise and treat I waited. It really didn't take much effort and was fairly quick and easy. They learned pretty quick I get a "no!" when I go in the house and a "good boy" and treat out here.