‘A free heating system or a free solar panel with each or every energy-check’ or ‘2 years of free electricity’. Three hundred communication- and marketing professionals, working for twenty energy- and telecom suppliers, receive " for three days in a row " traffic cards with these kind of impossible offers. Through a personalized internet link, the receiver enters a landingspage, where the sender will be revealed: TNT postal service. On the landingspage the effect of the - so called - traffic cards is explained: the impossible outrageous offers were not a mistake of their own company, but a great communication tool of TNT POST. Managers liked the smart approach, which resulted in a high impact and high response. Awarded with a silver Esprix.