Do you really know what is taking up all of your disk space? Unless you have a good tool, the answer is probably not. You might think that your “Documents” folder takes up most of the room, since you use it all the time and it has so many files in it. But even the bloated files produced by Microsoft Office pale in comparison to multimedia photo, music, and video files. And it is usually the folders that you don’t actively manage that are the worst space-wasters!