Joke might be on you, page-3

not true... clearing your cookies will only prevent ads that you have shown interest in via your search engine... for example, if you google cars on carsales.com.au you will get ads from that site on HC, when you clear your cookies you will still get ads, but they will be unrelated to your searches.... you could still get the same ads however, as they are simply on a shuffle basis via the advertising source...

your always going to get ads regardless...