The one thing that really put me off about using ONR is dirt would literally stick on the microfiber cloth and I had to resort to really hard scrubbing and, even then, I'm not able to wash most of them off. Considering how sensitive microfiber cloths are, these kind of scrubbing would tremendously shorten it's useful life. Good quality microfiber cloths are not cheap and difficult to find over here and I just can't convince myself to use those cheapo ones. I've also tried using the Schmitt...