I've got a laptop with a glossy screen, and have considered several so-called 'anti-glare' filters, since this glossy thing really gives me a headache. The one I tried might have protected the screen from scratches, (and I don't let a cat anywhere near my laptop anyway) but did little to reduce the glare.
I am aware of the near duplicate http://superuser.com/questions/29935/anti-glare-filter-for-glossy-laptop-screen , but my question is whether there are any such filters, not regarding specific models.
Clarification: My only standard of effectiveness is that I see only the image on the screen, and not my own reflection, or the neon lamp.