Great article for all that use lenses and displays (that means ALL of us).
is to NEVER touch a screen (optical lenses/displays/etc.) for ANY reason. Not even for pointing at things on a screen. I have trained many people to immediately tap the hand of someone that is about to reach/point at a screen and jovially remark "DON'T TOUCH THE SCREEN!
", while looking directly at them as you mean business.
is to NEVER use a wood-based (aka paper, tissue, towel) product to clean any type of optical material (glass or plastic). Micro-Fiber cleaning cloth material is great for such tasks.
is to NEVER clean an optical material unless absolutely necessary.
Pursol sounds like a great product and the chemistry (enzymes?) sounds like much forethought went into it. But I don't know if this product is readily available (w/o mail ordering it).
I have found that Maxell "Video Screen Cleaner Spray"
to be a worthy alternative, which is non-streaking, non-toxic and non-abrasive. This product and the refill kits are relatively easy to find locally; in such stores as Fry's Electronics.