Using a quick command, you can alias a directory in MSWindows to a drive letter. This is extremely handy when you access a nested directory often, as web developers are prone to do.
the command to do this is simply:
Example: SUBST z: C:\httpd\Apache2\htdocs
SUBST [DriveLetter]: [FullDirectoryPath]
I found this on LifeHacker. If you haven't looked at LifeHacker before, you should. I have their RSS feed as a libe bookmark in Firefox so I can quickly scroll through their entries without having to visit the site.