Turning off your PC daily to save power shortens its life.

Here's a topic that provokes debate. One side argues that turning the PC on and off stresses components (Processors life span : 10 years). The other side says it's a good thing; even the best programs and the OS can get cranky without occasional shutdowns. ( As you can see your windows get slower and slower).

Tips:

If you're using Windows XP, right-click the desktop, choose New, Shortcut, typeshutdown -s -t 00, click Next, give the shortcut a name (for example, Shutdown), and click Finish. Next time you need to shut down, click the shortcut icon.

So, next time when you realize your windows is slow, just restart your machine. :)