For the treasure chest maybe make sure he TELLS you he has to go, meaning you didn't have to ask him and that he DOES use the potty. For my DD I did a star for every pee and a special Dora sticker for each poop. But all these have been me promting her to go. Now we're moving onto her telling me so I was thinking that if I don't hve to ask her all day than she gets a sticker. When she has 10+ days of me not having to ask her she will get whatever she wants from the dollar store.

I don't know....we'll see! haha