Some windows 7 popular shortcut key

Here i am going you some tips that is some shortcut key using which you can access lot of thing using your keyword only. These shortcut keys are very popular among geeks they use these keys and make impression on other people.
1. Windows Key + Tab : Aero
2. Windows Key + E : Windows Explorer is launched.
3. Windows Key + R : Run Command is launched.
4. Windows Key + F : Search
5. Windows Key + X : Mobility Center
6. Windows Key + L : Lock Computer
7. Windows Key + U : Launches Ease of Access
8. Windows Key + P : Projector
9. Windows Key + T : Cycle Super Taskbar Items
10. Windows Key + S : OneNote Screen Clipping Tool
11. Windows Key + M : Minimize All Windows
12. Windows Key + D : Show/Hide Desktop
13. Windows Key + Up : Maximize Current Window
14. Windows Key + Down : Restore Down / Minimize
15. Windows Key + Left : Tile Current Window to the Left
16. Windows Key + Right : Tile Current Windows Right
17. Windows Key + # (# is any number)
18. Windows Key + = : Launches the Magnifier
19. Windows Key + Plus : Zoom in
20. Windows Key + Minus : Zooms out
21. Windows Key + Space : Peek at the desktop

use these shortcut keywords and make impression on other people.