Windows 7 shortcut keys.

Win+UP Arrow : Maximize the current window

Win+Down Arrow : If the current window is maximized, restore it; if the current window is restored, minimize it

Win+Left Arrow : Dock the current window to the left half of the screen

Win+Right Arrrow : Dock the current window to the right half of the screen

Win+Home : Minimize all but the current window

Win+P : Adjust presentation settings (for laptop connected to a projector)

Alt+F4 : Close the active window

Alt+Tab : Switch to previous active window

Alt+Esc : Cycle through all open windows

Win+Tab : Flip 3D

Ctrl+Win+Tab : Persistent Flip 3D

Win+T : Cycle through applications on taskbar (showing its live preview)

Win+M : Minimize all open windows

Win+Shift+M : Undo all window minimization

Win+D : Toggle showing the desktop

Win+Up Arrow : Maximize the current window

Win+Down Arrow : If the current window is maximized, restore it; if the current window is restored, minimize it

Win+Left Arrow : Dock the current window to the left half of the screen

Win+Right Arrow : Dock the current window to the right half of the screen

Win+Home : Minimize all but the current window

Win+(+/-) : Zoom in and out.

Win+X : Windows mobility center

Win+(1,2,3,4,5,) : Bring you to the first 5 programs on your taskbar

Win+(R/L) : Perfect if you have dual monitors.