What should I use for cleaning a TV plasma screen? My three-year-old daughter has put her hands many times on the screen and there is a big spot on it. I don't live in America, so maybe I'm not able to buy a known American brand, but I'll appreciate any kind of guide.
Ideally you want a non-scratching cloth or towel -- if you're aiming for near-perfection, the "lens wipes" sold for cleaning microscope lenses are a good way to go. With respect to the fingerprints, you'll be able to remove fingerprints if you use something in which the oils are at least a bit soluble. The key is to avoid an aggressive solvent (as DMoore notes...) which may also eat away at the screen coating(s). I generally use 35% isopropanol -- this concentration is low enough that it's unlikely to have much of an effect on a screen coating.