I hate facebook quizzes and really don't care how you scored on the "What type of Alien are you" quiz. I've been systematically blocking them, but it is a loosing battle. People create them faster than I can block them. I finally found the solution in a greasemonkey script that removes all mentions of quizzes.

http://steeev.freehostia.com/wp/2009/03/19/facebook_purity_cleans_up_the...