You can buy screen cleaner, but I don't like it and the cost is to high. I use Windex Crystal Rain highly diluted by spraying on a damp microfiber, not to much. Regular Windex has Ammonia in it and that will melt plastic. And Zep FAST 505 CLEANER AND DEGREASER the same way. Just make sure you don't get it into the edges especially draining down to the bottom of the screen, discretion is key. I've never had a problem using it like this. I suppose a mild dish detergent like Dawn diluted with distilled water would be very safe.
I saw a young girl washing 35 brand new computer monitors at the public library with Ammonia based cleaner, and told her that it would damage the monitors. She ignored me and till this day all 35 monitors look horrible, what an idiot! What kind of fools are we raising these days? I explained to her what would happen but she didn't care. I hope she got fired, but I'm sure she did not. She is probably a Code Writer now.
If I don't reply right away it's because I'm waiting for Windows 10 to Update.
eps1.0_hellofriend.mov_mr_robot
"I once spent two hours on the phone waiting to speak with HP Customer Service to complain about HP Customer Service" -Dr. Sheldon Cooper