I just thought of a random tip I could give moms. When I was little I used to scuff my black dress shoes all up by streaking them across the linoleum floor. The black streaks drove my mom crazy until one day she told me had better clean them up and find a way to do it fast, and left the room. I tried water, soap, and eventually, I just tried using a tissue. I wished I tried that in the first place. All you have to do is put barely any pressure at all and the black comes right up. I don' t know if this is a problem or if I have just stated something everyone already knows, but I thought I' d share just in case. It' s very simple and it works! :)