I, like so many others, often have the problem of a filling hard drive. I find it difficult to answer the question, "where is all that space going?" So Jagg (Directory Analyzer) is a tool that will show how much space is being taken up by directories on your hard drive, including all subdirectories. It basically does what Windows does when you right-click on a directory, choose properties, and look at the size.
It's nothing fancy and runs from an application jar. So just download the jar an execute it. You should be able to double-click on it if your JRE is setup correctly. Otherwise, you'll need to run it from the command line with "java -jar jagg.jar". Happy analyzing.
Jagg is released under the GNU General Public License, version 2.