Clean up the Mac?

Check out GGJstudios recent posts. His posts will answer all your questions.

No tools are needed for Mac maintenance - everything you need is in the Mac itself. For details, GGJstudios will give you all you need.

 

You really don't need "cleaner" or "maintenance" apps to keep your Mac running well, and some of these apps can do more harm than good. Most only remove files/folders or unused languages or architectures, which does nothing more than free up some drive space. It will not make your Mac run faster or more efficiently, since having stuff stored on a drive does not impact performance, unless you're running out of drive space.

Mac OS X does a good job of taking care of itself, without the need for 3rd party software.

Performance tips for Mac OS X