Unilever's Omo laundry detergent has a secret ingredient in Brazil, says Ad Age magazine: Some packages contain a sat nav device to track buyers home so the promo agency can follow and give them prizes.
"Try Something New With Omo" is the name of this unusual location-based promotion. The idea is to build excitement by surprising consumers with a free handheld video camera and tickets to a special event.
However, as one blogger points out, consumers may not want to open the door to strangers. Nor are they necessarily going to be pleased that the detergent they bought has a tracking device for following their movements.
Is this kind of promotion a good idea?