Some interesting ideas in this article.  Although written for permanent job seekers, it could also be very applicable to co-op students and high school students applying for university programs.  Some of those things are what can make you stand out from the crowd, in my experience on the hiring and admissions side.

Stand up comedian? Competitive athlete? Find out what surprising skills should stay on your resume.

Source: 11 Surprising Things to Keep On Your Resume – Glassdoor Blog