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 have a theory that the best ads come from personal experience. Some of the good ones I have done have really come out of the real experience of my life, and somehow this has come over as true and valid and persuasive. People love to read stories. They like to know you as a real person who has your struggle, pain, success and failure, etc. One well-known example is Jared Fogle's weight loss story which made millions of dollars for Subway. Start to collect your stories from today and use them in your ad campaigns.
David OgilvyIt has taken more than a hundred scientists two years to find out how to make the product in question; I have been given thirty days to create its personality and plan its launching. If I do my job well, I shall contribute as much as the hundred scientists to the success of this product.
David Ogilvy