I stumbled upon (please try to hold it in, Mario) this nice little application called Flux.
F.lux: software to make your life better
Wow, this is going to sound like an advertisement. Well it kind of is... so here goes:
Basically what it does is gradually adjust the color of your monitor during the day. It's bright during the day and darker (and tinted red) at night - perfect for dark rooms like mine. My eyes thank me every evening.
I've been using it for about a week and I must admit it is a very good thing to have around, so I thought I'd share it with the cboard. Enjoy.