WE visit this place several times a day and,according to statistics,even cumulatively spend up to three years of our lifetime there;yet it is hardly ever talked about– the toilet.So it is no wonder that it caused a lot of media attention when President Xi Jinping publicly called for a“toilet revolution”in China in April 2015.Back then,he called to intensify efforts to improve sanitary facilities in order to effectively increase the quality of tourism.