If you were a gamer back in the days of the NES, I can bet that you came across the Konami code at some point. In fact, I'd even be willing to bet that you can recite it from memory, despite the fact you haven't used it in 15 years. Well if you want to put that bit of knowledge to good use again, open up your Google Reader and enter the code.
For those rare few gamers out there that don't know what I'm talking about, the Konami code is most famous for its use in the game Contra (which is impossible to beat without the code), where it gives you 30 extra lives. Just in case your memory is a bit rusty, the old code is up, up, down, down, left, right, left, right, B, A.