That’s why Mac OS X has some automated scripts built-in to clean logs and cache files.
If that’s not enough, or you just like to spend money on a app that will clean even more than is necessary, there’s Disk Cleaner Pro. The Pro means it has a price tag, despite the fact that Mac users can choose from a number of free apps that do mostly the same thing.
Disk Cleaner Pro does one thing better, though. It’s easier to use than the free utilities.
Select what you want Disk Cleaner Pro to clean, and click the Clear Disk Space button. That’s it.
Disk Cleaner Pro checks your Mac’s files and then lists how much disk space is used by logs, caches, languages, downloaded files, email downloads, Speech voices, and the Trash.
Your Mac comes with a bunch of languages that most of us will never, ever use. Disk Cleaner Pro removes those, too (extra clicks required).
After that, it’s one click and you remove unneeded files and get in return more disk space. Just remember, there’s no Undo function. Delete means delete.