Have you ever wished that your hard drive would just tell you why it’s so full, and what files are filling it up?  Well, now there is a free program called WinDirStat that does just that.  WinDirStat, gives you a graphical view of your hard drive with blocks representing files.  The beauty of this is, you can quickly see which giant files are taking up your hard drive, and where they are located.  This program would be great for educators to monitor their hard drives and keep free space available.