This is probably one of the coolest things I’ve posted here so far. With any cheap webcam and a free piece of software from IBM, you can move your cursor, click, type text with an on-screen keyboard and much more – just by moving your head.
What you need:
1. a head (duh)
2. a webcam
3. Head tracking pointer by IBM

The download is easy, just fill out the form to create an IBM id and press download. You also need to extract the zip folder to any comfortable location.
How to use:
The program itself …

When you want to run a program designed for a previous version of windows, right click on it, open properties and choose the Compatibility tab. Check the box for run this program in compatibility mode and choose the operating system it was made for. If you aren’t sure, try them all and see which one works best.
More Cool Windows XP tips & tricks HERE

By default, most systems have some bandwidth reserved for nothing. You can change this the following way: (Note: this only works in Windows XP Professional)

Open gpedit.msc from the run box in the start menu.
Navigate to: Local Computer Policy > Computer configuration > Administrative templates > Network > QoS Packet Scheduler
Open Limit Reservable Bandwidth
Check the enabled box and change the Bandwidth Limit to 0%.

Depending on your system, this might need a restart to start working.
More Cool Windows XP tips & tricks HERE

This is called the Local Group Policy Editor and it lets you customize just about everything on your XP. This only comes with XP Professional, so the registry editor will have to do for Home users.Go to run from the start menu and type gpedit.msc to open it.
Look around and see for yourself what this wonderful tool has to offer.
More Cool Windows XP tips & tricks HERE

These tips will show you how to surf the internet a lot faster.
1. When typing a web address into the address bar, just type the website and press Ctrl + Enter to add http://www. to the beginning and .com to the end. E.g. you want to go to google: type google and press Ctrl + Enter. It’s as easy as that!
(Note: this only works with .com addresses.)
2. Use tabs instead of separate windows. This is a lot faster and doesn’t mess up your taskbar.
3. Use Firefox. Firefox is a much …

If you get your IP blocked somewhere and you don’t like it, then this can be pretty useful.
One way is to just turn off your router for some time, but most people don’t have static IP routers and this won’t help.
If that didn’t help, then you have to renew your IP using windows’ command prompt.
1. Type cmd into the run box from the start menu.
2. Type ipconfig into the command prompt. This will show you basic info about your IP address.
3. Type ipconfig /release. This will remove your current IP.
4. …