I purchased the Elf on the Shelf book and doll this year. I am sooo excited. I think I may give it to DS on Thanksgiving weekend. He already thinks the elves have been coming peridoically. He came home from school the other day and his playroom was cleaned and toys put away. He asked, "Who did this?" (Typical male at 4 years old! LOL!) I said, "Santa's elves must have come. They are watching you!" It worked.