While sitting around waiting for something to happen, I happen to stubble across this website. It's a simple game with a simple objective - Find the Invisible Cow. Do you think you can do it?

You've looking at a blank screen and the closer your pointer gets, the louder the cow gets. After you find the invisible cow five times, you can choose to find an invisible goat, if you wish. It's a dumb, simple, yet fun game that's free to play. Perfect time-waster.