Inside your Dropbox folder is a hidden cache folder that stores deleted files locally on your computer for faster restores. If you use Dropbox a lot, this cache folder can eat up valuable HD space.

There are a variety of maintenance routines that people can run in OS X, including the disk verification and permissions repair that come with the system, along with scripts such as cache cleaners ...

Every time you view a Web page in your browser, a copy of the page is stored in the browser's cache, a dedicated folder where Web content is saved on your hard disk drive. If you re-open the page, the ...

Michael McKissack writes in with a great mystery: I have a massive Photos library and use iCloud Photo Library stored on an external HD to maintain a local backup of all pictures. However, my wife and ...