Not all inquiries are particularly academic. In fact, I'm always pleased when students' goals focus on social, personal, emotional, physical, gastronomical, or any number of different categories of activities. In anticipation of the end of the school year, one student suggested cleaning personal spaces at school and at home. Many agreed to set it as a goal, although they agreed it was really a secondary goal and that no one had messy enough personal spaces to require a week of cleaning.
Lockers as neat as the first day of school.
I understand that this Independent Inquiry was particularly popular among parents. My favorite comment in their Ind Inq Meeting was that "now that I cleaned my locker, it's clean every time I look at it!"