TUAW just dug up “private mode” in the new Safari 3 beta, a feature that deletes downloaded files, keeps no cookies, and doesn’t hold onto passwords or personal info. As someone who enjoys certain types of sites now and again — OK, every 15 minutes — it’s nice to know this is out there. It will definitely save on lawyer bills during the divorce settlement.
To find it, click Safari—> Private Browsing. Boom. Super secret.