Never stop testing, and your advertising will never stop improving. Testing was used in advertising decades ago. The internet has made testing so easy that every online marketer can use it to improve advertising results. Google content experiment is a free tool for you to do split testing.
David OgilvyI was doing a campaign once for a manufacturer, and I couldn't think of an ideas, and I was kind of desperate about it. The night before I had to show something to my client I had a dream, an interesting dream. I woke up and for once in my life I wrote it down and went back to sleep Next morning I went to the office and had that dream out into a TV commercial which is still running thirty years after and which has made that particular product the leader in its field.
David OgilvyYou aren't advertising to a standing army; you are advertising to a moving parade. Three million consumers get married every year. The advertisement which sold a refrigerator to those who got married last year will probably be just as successful with those who'll get married next year. An advertisement is just like a radar sweep, constantly hunting new prospects as they come into the market. Get a good radar and keep it sweeping.
David Ogilvy