3M is hosting a facebook contest right now for a chance to win a free 3M window film installation. The contest is simple: just "like" 3M Window Film on Facebook (www.facebook.com/3MWindowFilm) and then upload a pic of your car to their wall and comment (30 words or less) on why your car should be selected for the Window Film giveaway. The contest will run through the end of April when the winner will be announced on Facebook.