"Decorate The Most Beautiful Christmas Tree" is a lovingly designed commercial sweepstake developed for KLINGEL & WENZ e-commerce shops in Germany and 12 other European countries. They performed very successfully by having over 150.000 unique users attending who decorated 30.000 trees and sent 10.000 e-cards over a total time of running 8 weeks online. KLINGEL & WENZ had a major breakthrough in voluntary newsletter registration rates that reached an enormous amount of 32% overall.