This may be the strangest promotion I've seen lately, but I'm willing to work with it. Old Navy is doing a Thanksgiving weekend promotion called Gobblepalooza, with its very own website and a variety of sales and discounts next Thursday, Friday and Saturday. There is also some sort of tie-in with the Rock Band video game.
Anyway, the Gobblepalooza website offers you the opportunity to create your own imaginary band. If you go to the website today, make a band (it is only one step, not difficult) and print the band logo (still not hard, but two steps (for me), you can take the band logo to an Old Navy store and get 50% off a single item. If you are planning to do some Old Navy shopping anyway, this is a great way to save some money on your purchase.