Extracurriculars/ Work experience?

<p>I've worked at my parents store since my sophmore year to help out the family. It's been a major part of my high school career and i listed it under "Extracurriculars" in the common app. Though it wasnt a paid job, i gained job experience through it. Should i list it under "Work Experience" as well, despite it being an unpaid job? Is it O.K. to have it under both E.C's and work experience?</p>