Book excerpt: Eight-year-old Sissy loves her life. She loves her toys, her Big house, and her Big backyard. But when Sissy's parents decide they are going to live in a Tiny House on wheels and travel around the U.S., Sissy isn't sure that she will like the idea of "living tiny." But as she and her mommy and daddy learn about downsizing, repurposing, and how "stuff is just stuff" in a positive way, Sissy soon understands that living Tiny has BIG possibilities; possibilities for all sorts of adventures and learning.