I use the microfiber cloth in many circumstances because it has the advantage of being used as such and without adjuvant (addition of product, laundry or other). When brushing your teeth is not uncommon to see projections on the mirror of the bathroom. The spots do not stand a passage or two will suffice. I have another permanently in the empty pocket of the car it allows me to solve small problems on the glazing. For a long time I know and using this product. I acknowledge that I am a bit fussy, but sometimes lazy, then a little bit of cloth often prevents me to do more. I also use it on the PC screen and the TV screen because it is not aggressive. As the cloth picks up dust and dirt, from time to time a small washing machine transition is necessary and voila. After washing the cloth that has lost none of its qualities can again go into action.