Cheat at iTunes/Pepsi Giveaway...
Here's how to cheat at the iTMS/Pepsi Giveaway:
How to get free iTunes from Pepsi with every bottle
If you tilt a sealed, new Pepsi bottle at 25 degrees and squint at the underside of the cap, you can tell whether it's a winning free-iTunes-track bottle or a try-again bottle.
[Boing Boing Blog]
Now if I could only find the friggin' bottles somewhere! It's been 3 weeks and still not seen one...