In Kigali City, Rwanda, the last Saturday of each month, is a compulsory day of cleaning, when all business comes to a stop in Kigali City, Rwanda. Everyone including the President partakes in cleaning the city, and this cleaning day has helped Rwanda recover from genocide and civil war in multiple ways by creating a sense of purpose and togetherness amongst the people. http://www.openideo.com/open/vibrant-cities/inspiration/cleaning-day