Portuguese Digital Agency adOn (www.adon.pt) created an exclusive campaign for Foursquare users, where they could access to a €7,5 discount in a minimum purchase of €35 at any of the 35 Staples Stores across Portugal. All they had to do was show the Special with a promotion code when making a purchase. The main goals were: to increase traffic store, to leverage sales performance and to measure if Foursquare users are more or less valuable consumers when comparing between a Staples Client Card regular consumer.