Not only did it work great to revive old oily (which I couldn't get out no matter how hard I tried) microfiber cloths that I had used for waxing, etc, but we have had a constant battle with the microfiber cloths that we use to clean our prescription glasses- after you used them and washed them, they still left a haze on the glasses. This stuff ended that- they work great now! Also, I decided to use it on one of my white dress shirt collars, and it got out the 'ring-around-the collar' when nothing else would, including "Shout". Great stuff!