DRIVING toward Kungsholmen, one has to pass the Statshuset, where the Nobel prizes are presented. This is a more classical part of Stockholm, once heavily industrial and now, quietly residential. Walking along Lake Maren, this is one of the most peaceful parts of the city. A few blocks away, there?s more nightlife, police cars occasionally passing the bars. It is between these contrasts that Sergej Gerasimenko has his showroom for Returdesign, the environmentally conscious brand of choice when it comes to furniture...