When kids leave I like to give the parents a cd with a collection of pictures on it from their time at daycare. I give parents the option to sign permission slips with their registrations allowing me to share their child's image with other parents (never on the internet though!). They all seem to appreciate it. I love the book idea- I also have a little girl going off to school (she's been with me since she was 14 months...little tear. )