I know this is going to sound silly to some, but I have taken to wearing a black, non-reflective "smock" I made from some material my wife had. I put a hole in the center for my head to fit through and let the material drape over my shoulders and chest, down to my waist. This doesn't make a small difference in the viewablility of the screen...it makes a huge difference. With my 64 year old eyes I need all the help I can get.
Mark