Burning the Midnight Oil
Let’s all admit it – online classes means working on stuff at 11pm or later. (We’ve all been there, both as faculty and student. Personally I did my best work as a student at 2am.)
I’ve become a big fan of f.lux. It’s software which automatically adjusts the color temperature of your monitor based on the time. Basically – when the sun goes down, your monitor will get less blue so it’s not as hard to look at.
It’s free, and available for both Windows and OS X. Get it at https://justgetflux.com/.