Two children sitting at home on a rainy day are visited by the Cat in the Hat who shows them some tricks and games.

When a white dog with black spots runs away from home, he gets so dirty his family doesn't recognize him as a black dog with white spots.

Bear cares about keeping his house clean and tidy almost as much as he cares about his stuffed friend, Ursa, so he is determined to find the spider building messy webs there.

Mr. Messy gets a visit from Mr. Neat and Mr. Tidy, who set about cleaning up his house.

Bella Legrossi and Boris Kleanitoff, the messiest and cleanest monsters in Booville respectively, do nothing but argue until the night of Harry Beastie's Halloween party.

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. Comic strip illustrations are interspersed throughout the text.

Milli, Geo, and Bot must help Silly Bear clean himself up after he makes a mess with glue.

Mouse and his downstairs neighbor, Mole, discover that when they help each other, housecleaning and other daily tasks are much easier.

Grimelda loves pickle pie, but she is unable to find the spell book and the pickle root needed for her recipe.

Pig the Pug loves to roll in all sorts of disgusting garbage, and track dirty paw prints all over the house; he does not like the idea of a bath, but when his plan the stop up the tub seriously backfires he decides that bath time must be endured--after all he can always find some more garbage to roll in.