Exactly, join a few clubs, and actually participate in them.  You will learn much more than you think and colleges, jobs, internships, etc. all love them.  In undergrad I was in an ambassadors group, a finance club, and a portfolio management type club.  I took leadership roles in 2 of them and it put me well above many candidates with higher gpa's when getting internships and jobs.
Some of my buddies biggest regrets were not getting more involved inextracurriculars.