I have a related question, so I thought I would ask it here, rather than creating a new thread. According to the Finder my boot drive contains 49 GB of files. When I add up the subfolders displayed in the Finder window for this drive I get a total of 34.5 GB. So where are the extra 14.5 GB? And do I need these files?
(The reason I am asking this question, is that my hard drive is getting rather full, so I wnat to try to trim some files. I noticed after upgrading to Mavericks my 60-GB boot drive went from 28.3 GB used to 49 GB used, yet I don't remember adding very much other data to the drive.)