i3wm, use with vim and terminal stuff = barely touch mouse xD
.
(I'm so obsessed with i3 that I try to re-create it in Windows : https://github.com/CSaratakij/...)
(still not full featured, but get the job done xD)

Isn't this tiling stuff possible in windows?
I know 2x2 or 1x2 is possible, i use it all the time, not sure about 3 or more next to each other tho

@nitwhiz You cant select other window without alt+tab or just use a mouse

@nitwhiz And if you use only keyboard, you have to cycle through virtual desktop in order to switch to your desire virtual desktop
(if you have a lot of virtual desktop, this is such a pain)

@CSaratakij k, well then I'm actually interested in your project.:D

no gap at the top?

@JoshBent No, My program doesnt use a gap. The gap you see, cause by Windows 's compositor (DWM)
It add 1 pixel border to window which make the size of window to be greater than the size of actual window for about 8 pixel. some app deal with that by handle this in its app (example, steam, visual studio).
I havent try to disable DWM yet.
(dont know if it even possible)