In Pictures: 10 things every new Mac user should k...
Hey, screen real estate nuts this one's for you. You can have a program take up every pixel of the display. Just click the arrows in the top right corner of the application (many applications have this option now), and click them again to leave full screen mode. The arrows are hidden so move the mouse to the top right corner of the screen and you will see a blue square with two arrows.
Note: That big scary picture over there is not the author, but it gives you that full-screen feeling, doesn't it?
In Pictures: 10 things every new Mac user should know