When a foster child leaves your home

I hope this isn't a dumb question. I'm just starting the certification process and I have so many questions. What do you send with a foster child when they leave your home? I would think you should send all of their clothes and shoes, but what about other things? Do you divide up toys and let them keep their favorites? How about pictures? Does anyone make photo albums to send with the child? It makes me sad to think a child will move around and continually lose familiar and favorite things.