One of the great tools you can get with the PowerToys I talked of earlier is the PowerToy Calculator. A feature you may not be expecting with the application is tools for converting a variety of measurements from English to Metric equivalents and more.
As you can see from the screen shot above, all the basics you probably wonder about frequently are available.
In addition to the conversions, you get all your basic calculator option, including graphing and trig functions too. You know all that cool stuff you used to use with your Texas Instruments T51 calculator in high school.

After doing some research on my AutoPlay and autorun.inf questions earlier I was reminded about some of the features that are available for tweaking your Windows XP install with the PowerToys applications like TweakUI.
Here’s a quick reminder about some of the other tools that are available:

Color Control Panel Applet: Professional-level photographers and designers know that getting consistent, accurate color from file to screen to print and beyond is a requirement for great results. This new tool helps you manage Windows color settings in one place.
SyncToy: With new sources of files coming from every direction (such as digital cameras, e-mail, …read more