When you've used computers and the internet for as long as me, you grow preferences for certain things. Me? I like it when my software is as efficient as possible and best uses my hardware. Because of this, I like to use strictly Free and Open Source OSes, specifically variants of Linux and BSD. As well, I don't use a desktop environment with most of my computers so I get my best CPU and RAM performance. Specifically, for most of my machines; I use Suckless' DWM Window Manager along with their finely coded ST Terminal. To know more about Suckless, please visit them here. If you are interested to know more about the OSes I use, read about Linux here and BSD here.