15 Useful Windows 7 Shortcuts

1. Win+Home: Clear all but the active window
2. Win+Space: All windows become transparent so you can see through to the desktop
3. Win+Up arrow: Maximize the active window
4. Win+Down arrow: Minimize the window/Restore the window if it's maximized
5. Win+Left/Right arrows: Dock the window to each side of the monitor [If you've got dual monitors, adding Shift to the mix (e.g., Win+Shift+Right arrow) will move the window to the adjacent monitor.]
6. Win+T: Focus and scroll through items on the taskbar
7. Win+P: Adjust presentation settings for your display
8. Win+(+/-): Zoom in/out
9. Shift+Click a taskbar item: Open a new instance of that application
10. Ctrl+Shift+Esc: Quickly Open Windows Explorer.
11. Ctrl+Shift+Click to Open a Program As Administrator
12. Shift+Right-Click: Enhances "Send To" Menu. 
13. Ctrl+Shift+N: Creates a New Folder 
14. Win+B: Move Focus to the System Tray.
15. Win+Pause: Open System Properties.