Most people dislike advertisements, but we all proactively look for promotions. Slickdeals alone has more than 12 million users, not to mention the regular readers of the weekly/monthly savings circulars from Fred Meyer, Costco, Albertsons and many other stores. Promotion is one of the oldest and widely used marketing techniques. The first promotion dates back more than a century ago, in 1895, when the first coupon was issued by C. W. Post for one penny off on its new Grape Nuts cereal brand.