An application that changes the color of your screen according to the time of day outside. It transitions between cool blue shade to a warm yellow. Essentially, it has been proven that blue light blocks the creation of certain chemicals in our body, that induce sleep or a sleepy feeling. Working nights, what f.lux does is reduces the blue component of the light being emitted from our LCD screens to our eyes. You simply enter your location, the type of lighting your room has, and it tweaks the display accordingly. You can disable it instantly, if needed for doing color sensitive work. I have now installed it on all the PCs in the house. It's a shame this does not come for iOS (Apple does not allow access to the API) else this would make browsing and surfing great on the iPad/iPhone. Do try it, if you are not already doing so. Get it here - f.lux: software to make your life better It reduces the glare so much, that My eyes start to hurt when I disable it. If you are a user, do share your experience/feedback.