xmonad
I have a well-customized xmonad config file. Tab 1 is email, 2 is chat, 3 is web, 4 to 6 is probably a bunch of terminals, 7 and 8 are special and 9 is the music player.
I don't remember why I started using Xmonad. I remember being annoyed at Awesome for forcing me to rewrite my configs at major upgrades and noticing my friends were using a cool Haskell-based WM.
My main gripe with Xmonad is the lack of good floating windows support.
I have used a xmonad-session-rc file to load things on startup,
a special feature of the xmonad Debian package that i found quite
useful.
I mayhave switched to i3 when I get bored, because it seems all the cool
kids are switching to that. Or maybe Gnome, or KDE, because that's
what Mr. Robot says is cool. Right? Right.