Well, first of all, you should know that your Mac has more than just one Trash. Certain apps, like Aperture and Photos, have their very own trash bins. These other application-specific trashes can be a pain to find and clean out. CleanMyMac 3’s Trash Bins cleans up all the trashes on your Mac, not just the main Trash in your Dock.
What exactly does Trash Bins do?
With the Trash Bins module, you can empty all your trashes on your Mac, including all the app-specific or drive-specific trashes. Plus, if there’s ever an error when it comes to emptying your Trash, CleanMyMac 3 lets you empty it without restriction — it’s cleanliness at a moment’s notice.