Bored? Check out the National Advisory List of Student Contests and Activities, produced and supported by the National Association of Secondary School Principals (NASSP).
Their mission: "The purpose of the National Advisory List is to provide information to assist principals, teachers, parents, and students in making decisions regarding participation in a wide variety of program opportunities."
These programs go from Alliance for Young Writers and Artists to Mathematical Association of America, Science Olympiad, Thespian Festival, a multitude of leadership programs, and many others -- the proverbial something for everyone.
The listings and convenient hyperlinks are here.