As with previous versions of Windows, Microsoft has released a set of great utilities to enhance the Windows experience. 
Power Toys for XP consists of the following:

1.Super-Fast User Switcher: Switch users without having to go through the XP logon screen
2.Open Command Window Here: Open a command window that points to a particular folder just by right-clicking that folder
3.TweakUI: Make many modifications to internal XP settings that aren't accessible in the default UI
4.Power Calculator: Graph and evaluate functions as well as perform unit conversions
5.Image Resizer: Easily resize multiple images into a target size with a right-click
6.CD Slide Show Generator: View images as a slide show
7.Virtual Desktop Manager: Have up to four virtual desktops
8.Taskbar Magnifier: Magnify part of the screen from the taskbar
9.HTML Slide Show Wizard: Create HTML slide shows of your digital pictures, ready to place on a Web site
10.Webcam Timershot: Take pictures at specified time intervals from a Webcam connected to your computer and save them to a location that you designate