We use microfiber to clean floors but the microfiber itself is SO hard to clean afterwards. They clump up in the washing machine. Any ideas? The websites talk about not washing them with other clothes, which is fairly obvious to me. These things are grimy. Also, microfiber cloth would latch on to other clothes and rip them up. But even if you wash them on their own, with other microfibers, how do you keep them from turning into a single large microfiber ball and not really getting clean?