I don't let SAS scan for cookies a total waste of time. The main issue with cookies are third party cookies, those that aren't for a site that you are viewing, they can track your browser usage and activity for that site other site (shopping, etc.). Depending on your browser (?) you should be able to block third party cookies, you can also set your browser to clear your cookies when you close it.
Since I use Firefox 6.x, I also have the cookie monster add-on and by default that only allows session cookies; they are only valid for the time you have your browser is running. The cookie monster add-on also allows you to accept cookies (normal time limited ones) for a site, like forum.avast.com as cookies are used so you don't have to logon all the time, etc.
All of the above helps remove the need for you to manually manage cookies.
- See
http://en.wikipedia.org/wiki/HTTP_cookie.
Even so if cookies were deleted, session cookies would be recreated on entry to the site.
I never have got on with Chrome, didn't like the interface, nor its lack of configurability (compared to FF) and its lessor range of odd-ons.