Sunglasses Best Prices

I really want my sunglasses to last long without getting to many scratches, usually those scratches resulting from improper cleaning. Can’t find this pair too often, so it’s like my treasure. I’ve learned that either those cleaning bags that act like a cleaning cloth or these microfiber cloths are the ways to go. Any testimonials?

Also, as I researched, apparently there is more than one use for microfiber cloths. THere’s also a ****** microfiber cloth. Can anybody elaborate and tell me if it’s actually good for cleaning your face or skin?

Nila