Gretchen, a student at Maltby Intermediate School, proposes putting advertisements on the school's blue, dull lockers to make them more interesting. She was inspired by a school in Minnesota that posted ads on their lockers for extra funds. Gretchen believes ads would help students locate their lockers more easily and raise money for the school through businesses paying for ad space. She hopes the principal will approve the idea so Maltby can follow the Minnesota school's example of brightening up lockers with ads and potentially influence other schools worldwide to do the same.