S.B.
my daughter is 3 1/2, and I was trying to get her to let me know when she had to pee at night by knocking on the door. Which became her knocking on the door for a hug, tucking in, an extra book, etc. Last week we implemented a sticker system. She picked the type of stickers out at the store and every morning that she goes a whole night without knocking on the door (except for last night, we decided needing her lovey was acceptable) she gets a sticker in the morning. So far, this has worked very well, only one night where she didnt get a sticker in the morning.