Free video games.

My cousin is a video arcade technician, and he taught me the secret code you can enter into almost any video game machine to give you free games.  As long as the machine has a joystick and at least two buttons, I know how to play without putting in any quarters.  It's a very well kept secret in the video game industry, because if everybody knew the code they would go out of business instantly, but it's also necessary so the technicians can do their job when the games aren't working correctly.