Supplemental essays

Does anyone have any ideas of what to write about in the “tell us something we don’t already know” supplemental essay of any school? The school I am applying to does not take a personal essay, so should I write something about that? Obviously the essay has to be about something not on my application, but any ideas on something general?

Its a perfect opportunity to write about something meaningful to you. Any hobbies you enjoy? Favorite movies, food, topics you are passionate about.
Show the schools you are applying to, how you are unique. Which you are, no one is the same as the next person.