Have you ever wondered that why you have to do steps like Start/Turn Off Computer and then choose Shut Down, Restart or Log Off option? Why don't you just double click and then close your Windows like you do with other program?
This is the solution: Making shorcut for those options.
i)

Right-click on your desktop and choose New/Shorcut
ii)

In the box appeared, put in these codes:
-For Shutdown: shutdown -s -t 0
-For Restart: shutdown -r -t 0
-For Log Off: shutdown -l -t 0
iii)

In the name box, put in anything you like. Cool name like NUKE Button or sth ^^. This will surely make people curious and click on these buttons.
iv)
Choose some nice icon for these in the rundll32 shell.
Have fun.
Next time: Keyboard Shorcut, something you may not know of.

