Windows 7 simplifies document and program management by allowing you to “dock” a window or manipulate its size with one mouse maneuver or a simple keystroke.

To dock your window on one half of the screen, drag it to the left or right and it will change its size to fit that half of the screen.

To manipulate the vertical size of a window, drag the window to the top to maximize it, or double-click the window’s top or bottom border to maximize it vertically while keeping the same width.

You can also perform all of these functions with keystrokes:

 + Left Arrow and  + Right Arrow dock to half the screen
 + Up Arrow and  + Down Arrow maximize and minimize
 + Shift + Up Arrow and  + Shift + Down Arrow maximize and restore vertical size.