Mary Margaret will do anything to get a pet, including: 1. Sing a song about it over and over until her mom gets the message. 2. Do the baddest chore of all (cleaning the toilet!). 3. Earn money by selling handmade poop purses (or Number Two Totes, as her mother prefers her to call them) to neighborhood dog walkers. The problem is, Mary Margaret's mother isn't listening. She's too busy thinking about what it will be like to have a new baby at her...