It may not have been the Japanese who came up with the saying “cleanliness is next to godliness,” but the Land of the Rising Sun certainly has its share of neat-freakiness. After all, the word for “pretty” in Japanese, kirei, also means clean. This cultural obsession with keeping things tidy has resulted in the development of some uniquely Japanese habits regarding one of the more delicate aspects of daily life: the bathroom. For anyone planning a trip to Tokyo who doesn’t want to be caught with their pants down when nature calls (or anyone just looking for a little bathroom...