Devoted to making lists about everything in his life, Wallace the mouse discovers the joys of spontaneity and adventure when he becomes friends with his neighbor Albert.

Still reeling from the sudden death of her mother, Jess is about to do the hardest thing she's ever done: empty her childhood home so that it can be sold.  As she sorts through a lifetime of memories, everything comes to a halt when she comes across something she just can't part with: an old set of encyclopedias.  To the world, the books are outdated and ready to be recycled.  To Jess, they represent love and the future that her mother always wanted...

Bessey finally cleans up her messy room.

Henry helps clean up his room.

When Joe messes up his room immediately after his mother has cleaned it, his method of straightening it up again does not meet with her approval.

When Messy Bessey starts to clean up her desk at school, she inspires the rest of the class to clean up the entire room.

Molly claims to be too busy to tidy up when she makes a mess, but things change when Grandma invites her for a sleepover and she cannot find her Sloppy Bear.

Fourth-grader Frankie Piccolini has a vivid imagination when it comes to cleaning his disastrously messy room, but eventually even he decides that it is just too dirty.

Tilly never has time to tidy her messy bedroom because she is always too busy helping other people. So when she leaves home to visit her far-flung relatives, how will her family cope without her?

Charlie Bumpers is sure he does not stand a chance of getting along with his fourth grade teacher and despite his best efforts to be neat and well-behaved, he always seems to be in trouble until he discovers her secret.