OS X: Your Mac likes to cache things in your "free" RAM so if you need them later you can load them quickly. This might be nice sometimes, but if you need to free up a lot of memory for a particular ...

Free app Memory Clean lets you monitor your Mac’s memory usage and will clean it automatically or when asked. Matt Elliott is a senior editor at CNET with a focus on laptops and streaming services.

A sluggish Mac is usually not a sign that the hardware has suddenly given up, but that cached data and other temporary files have quietly piled up in the background. Clearing those caches is one of ...

Editor’s note: The following review is part of Macworld’s GemFest 2013. Every day (except Sunday) from mid-July until late September, the Macworld staff will use the Mac Gems blog to briefly cover a ...