How to Never Lose Pepsi's iTunes Giveaway

Not so much a hack as tilting the bottle to look under the cap, but still pretty noteworthy: How to never lose Pepsi's iTunes giveaway. Just saw it demonstrated on The Screen Savers and it seems pretty awesome. Once again wishing iTunes worked in Canada so I could go buy a bunch of Pepsi and buy all my own songs for free, thereby assuring me uh... something.