I have a new 15" powerbook. My 3 year old accidentally touched the screen and now there is a fingerprint and I don't know how to get it off. I've noticed in macword that there is a "macsales.com" advertisement for these leather screen protector thingys. Is it worth my money to get one of those? Is there something better I can use to help protect my screen? Also, how can I get rid of the fingerprint?