Then there are
fun details like this one: ethanol is a nice harmless
cleaning fluid for many things, including most plastics. But it will
turn plexiglas matte.
And never use IPA to clean the focus screen in your SLR camera. I had
to have a Pentax dismantled and the screen replaced after that one.
I would go further. I would say, never use anything stronger than water
to clean any flat-panel display.
Peace... Sridhar