I was about to buy a new hard disc for my laptop, thinking my current 160Gb was "intelligently" all used up. Err, no. Thanks to this app, I soon identified 8Gb of wasted temp files, and it showed me which apps were hogging my disc space. I no longer need to buy a new hard disc ! Very easy to use, and worth every Euro. Don't bother getting the Pro version if you're just intending to use it at home though.