There is nothing like free cash to get people do anything (even eat more junk food.) According to Advertising Age, one of Mexico’s most successful ongoing marketing promotions is Sabrilana, in which PepsiCo’s Mexican subsidiary Sabritas is stuffing mucho dinero into the packaging of Doritos, Tostitos, Ruffles and other snacks.

During the promotion, which started in January, sales were up 18% by value and 20% by units, Francisco Jimenez, Sabritas marketing director, told AdAge. Me cae!

And because nothing goes better with free cash than state-of-the-art advertising, here’s the spot pitching the promotion.