Wowie! If you have an iPhone 4, protect the screen with one of these Transparent Clear Screen Protectors for only $0.84 shipped from Amazon.com! Since there are 3 included in the pack, this makes each screen protector only $0.28!
Plus, it comes with the cloth as well to clean the screen prior to laying on the protector.
Amazon prices can flip fast, so if you're interested in this deal you might want to act quick! Make sure to also confirm your final price in the cart before checking out because that can also fluctuate.