The disk cache in OS X can sometimes use a fair amount of the system's RAM, and clearing it can help you figure out how much RAM your applications and system processes are using. Topher, an avid Mac ...

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 ...

Microsoft says Microsoft Edge users will notice improved performance and a smaller disk footprint because the web browser now automatically compresses disk caches. "Beginning with Microsoft Edge 102 ...