we use a damp papertowel with water - thats really all you need -- remember "pop" is mostly fructose - (junk food), so water will disove it without problem. As for routine dusting we have a 2" soft bristle paint brush we use and we just paint the dust off the FP. It is not recommended to use abrasives, or chemicals like windex etc.  Thats all we have used for years. It will also depend of course which FP you have and what the actual material is on your display, some are glass, others are membrane stuff etc. Also when you wipe take care not to exert to much pressure when wiping.

I'd use something a bit less abrasive than a paper towel. Any soft hand towel will be good. Light pressure with a repetitive motion and repeat.

charmin? LOL