Surippa o haite kudasai! (Pls put on slippers!)
by Pixiekatten
Taking off your shoes and instead putting on slippers is a custom as old as Japan. And is the custom in all Japanese homes, temples, shrines, many hospitals and small offices, schools, restaurants, etc. All shoes worn outside are taken off at the entrance called "genkan" and you are provided your own guest slippers to be worn inside. These slippers however are removed before entering the tatami room, the traditional Japanese room where the floor is covered with a number of tightly woven straw mats used for sleeping at night or for a traditional ceremony like a tea ceremony.There are special slippers designated for use while in the toilet room. This is also a signal that the toilet is occupied.