Every browser has it now. It goes by different aliases, such as Private Mode, InPrivate, and Incognito -but all achieve the same purpose. If you want to go places on the 'net and not leave any tracks on the local machine, fire up the ole' private mode. However, like most features in today's web browser besides History, Bookmarks, and the Back Button; private mode has pretty much been left un-clicked. That is, except for those dabbling in the, um, less savory side of the Web. Certainly this feature has a more noble application, right?