This is a great article if you wish to clean up your Mac system. If you have been using your Mac for any length of time, you have accumulated tons of Preference files in your Home Library Folder. If you don’t believe me, go take a look at /Users/Username/Library/Preferences. At least some of those Preference files are no longer in use. It really is not a bad idea to clean some older ones out. The article listed about provides an excellent method to do this. I have used it and so far, so good.