http://www.insidehighered.com/sites/default/server_files/styles/blog_landing/public/technology_and_learning_blog_header.jpg?itok=aQthgJ91By Joshua Kim. If your hard drive is anything like mine - then your hard drive is a mess. 
If you local file storage story resembles my own - and I bet that it does - then you have thousands upon thousands of files on your laptop/desktop local drive. Read more...