I just cleaned mine with Mr. Muscle window-cleaner, before I saw this thread. Sounds like the sort of stuff Sgt. LED would approve of.
I'll let you know if my screen dissolves as a result of this, lol.
LOL
I am a big fan of Micro Fiber cloths. In most cases they can be used dry. For grease / finger print type problems a little Windex or DM51's Mr Muscle can be used with the Micro Fiber cloth.
These Cloths have come way down in price. You can get 25 at Sams Club for 9.99. I have cleaned my Camera Len's, Binoculars, Computer Screens for years and Never had one problem. For expensive lens you should always use a known Clean Cloth made for this purpose.
DO NOT use tissue paper on coated lens, polycarbonates, Cameras or Binoculars. As stated earlier this practice will almost certainly cause fine scratches sooner or later.
Bill