Smart Pix provides quick access to your files. It uses multi-dimensional storage: you can store the same file under many keywords. When you search you find at the intersection of the keywords exactly the files that you need. Often you find files that turn out to be very handy but which you haven't thought of at first. To experience the power of Smart Pix you must be good at coming up with good keywords. By the way, Smart Pix is very user friendly. Such a low price for great quality.