Repeat your winners. If you are lucky enough to write a good advertisement, repeat it until it stops selling. Scores of good advertisements have been discarded before they lost their potency.

Experience has taught me that advertisers get the best results when they pay their agency a flat fee. It is unrealistic to expect your agency to be impartial when its vested interest lies wholly in the direction of increasing your commissionable advertising.

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.

Ninety-nine percent of advertising doesn't sell much of anything.

A well-run restaurant is like a winning baseball team. It makes the most of every crew member's talent and takes advantage of every split-second opportunity to speed up service.

If you want to be interesting, be interested.

What you say in advertising is more important than how you say it.