I wouldn’t recommend everyone, or that even most people, should perform a clean OS X install these days, but my older iMac seems unusually sluggish. I’m eager to identify the cause. If I perform a clean install, and this Mac doesn’t appear to speed up in the slightest, then I’ve eliminated several of the possible causes.
If you think you might find yourself selling your Mac in the next year, or if you would simply enjoy the experience of a Mac that’s 'like new' for some other reason, then save this link. ∞
(Via The Loop)