This is a nice program we heard about from Mallory and her Dad... Thanks Bernie! I have it on my computer and it is a really nice addition. It won't work on all devices but if yours will you may be pleasantly surprised :)  It's called f.lux and it adjusts the color of your screen to match the time of day for your location. Removes the blue light part of the spectrum when it's dark out, potentially helping with our circadian rhythms...