A tag is a non-hierarchical keyword or term assigned to a piece of information (such as a digital image or computer file). This kind of metadata helps describe an item and allows it to be found again by browsing or searching. Tags are generally chosen informally and personally by the item's creator or by its viewer, depending on the system.
That sounds crazy, but with this program you can manage your files even without knowing what their real path is
Tag your files, search through them with a few clicks, organize your tags into categories, and group your files into nice virtual folders
Introduction the software that allows using tags and categories on your computer just the way you do with web-pages