We live in the Planet of Plastic Sea, and we don't usually think this to be our fault, but what if that coffee cup we disposed for recycle is actually part of a Plastic Island at this very moment? We are consumers and we are designers. That counts as some of the greatest powers someone can have these days. This talk comes to enlighten us on our responsibility as gate keepers, with demonstrations of simple acts we can take as consumers and designers to lead the behavior of a sustainable future. ---- Slides from my presentation given at WUD16, World Usability Day 2016, in Antwerp, Belgium.