Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I wonder if Private Browsing would help. I can't find anything confirming (or otherwise) whether Private Browsing affects cache. It affects cookies so that makes me think it might.

Of course, Private Browsing is an on/off option. It won't give you the ability to pick and choose which sites accumulate cache. :eek:
 
I'm not sitting at one of my macs right now...but yes, if you have the latest version of Safari (with Tiger?...I can't remember functionality changes from 10.3 to 10.4 atm), private browsing selection should pop a dialog that will let you know what it does.

Whenever I've wanted to empty the cache I select "empty cache". Since getting Onyx up and running I just let it do the cleanup, but neither of those is completely automated...sorry.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.