I got bored and started doing the whole My Coke Rewards thing. Basically, you enter the string of numbers that are printed under the bottle caps or on boxes of coca-cola, or coca-cola affiliated drinks into mycokerewards.com. They then give you points for every code entered and you can use these codes to get prizes.
The whole thing is stupid, but I've kind of gotten myself addicted to it. So, if YOU drink coke (or other coke products) and YOU have any codes that you don't intend on using, I would MUCH appreciate it if you just left a comment with some of those codes.