We really have amazon to thank. Major book sellers ( Barnes and Nobles, Borders, Waldenbooks, etc ) were a major source of clean bathrooms. If you needed to use a bathroom, you could visit a bookstore, use the bathroom, browse for some books you might like to buy and go home and order it on amazon tax-free that night. Unfortunately, amazon did to bookstores what the asteroid did to dinosaurs and we are all worse off for it.