Mac - Onyx
Onyx - is a multifunction utility (maintenance, optimization, and personalization). It allows you to verify the Startup Disk and the structure of its System files, to run miscellaneous tasks of system maintenance, to configure some hidden parameters of the Finder, Dock, Dashboard, Exposé, Safari, Login window and of some of Apple's own applications, to delete caches, to remove a certain number of files and folders that may become cumbersome and more.