Why waste time on your computer?
You can save yourself hundreds of mouse clicks by using these
shortcuts.
Press
CTRL+C
CTRL+X
CTRL+V
CTRL+Z
CTRL+A
ALT+F4
F5
TAB
Shift+TAB
Windows Key+E
Windows Key+M
Windows Key+L
To
Copy
Cut
Paste
Undo
Select All
Close the Active Program
Refresh Current Window
Move Forward Through Options
Move Backward Through Options
Open Windows Explorer (My Computer)
Minimize all Windows
Lock the Computer

If you like how much faster your work is getting
then you should check out Microsoft's specially designed Keyboard
Assistance site. Just visit the site below and select the
Microsoft application you want to learn more about and you will
become more proficient in no time.
http://www.microsoft.com/enable/products/keyboard.aspx