Bob Gostischa showed everyone how the free version of the  CCleaner  utility program from Piriform can be used to clean much more than the crap in your computer. Click on the link below to get complete details on his presentation. https://docs.google.com/document/d/19RzcnAZdpmnzbRIgye2UD-j1EWD44eKrqnP9QWXiwgQ/edit?usp=sharing