It happens to everyone eventually. Your hard drive is suddenly full and you are left wondering where did all my free space go? Now you must begin the task of deleting old files and folders to reclaim space but where do you start? In the past I would suggest manually checking the sizes of all of your folders so you know where to begin the hunt but now there is a great utility called WinDirStat that does the work for you. After inspecting a drive you are shown exactly how much data is in each folder, what file types are taking up the most space and even a visual representation of the files on your disk.
Now you know exactly where to target your cleanup effort.
WinDirStat Web site.