Safari clear cache on quit Is there any way of convincing Safari to clear the cache when it quits? If not from Safari's options, then maybe an extension that does this?

I would use private browsing instead, but unfortunately it doesn't seem to work well for me (some sites say they can't use cookies, and a lot of functionality is broken with this enabled).
The menubar app Cookie can clear exactly what you want to clear at quit, at timed intervals, or both.

Can also clear thosenefarious Tracking Cookies, as well as non-favorite cookies, Flash and other databases -- and do this for all your browsers.

Not part of the company--just think especially with Tracking, it's a must have. SweetPea Productions, trial available.