M.N.
With my daughter and son I create them a potty chart and hung it up in the bathroom. I took them to a scrapbooking store to pick out small and large stickers. Everything time they peed they would get to put a small sticker on the chart and then they pooped they were able to put a big sticker. I would also give them 1 m&m for peeing and 2 m&m's for pooping. If they went all week without an accident they would get a surprise, like a new book, coloring book. I went to the dollar store and bought a few cheap toys to give for a prize also. They loved it and it worked. I made the chart for 2 weeks.