When she runs out of space for all the things she collects, Whitney Squirrel decides to make more room by moving her sleeping brother outside and using up the available space in her parents' room
I loved reading this book when I was little. Mostly because the main character's name was Whitney (and you never read books with a character named Whitney!), but also because I liked to collect things, too. The story is really cute, and there is a good lesson to be learned for the pack rat in us all!