My screenshots are really boring. There's no eye-candy. You know how Emacs looks like, now just imagine it full-screen without the window-decoration and I even removed the menu-bar and scroll-bar from Emacs. My terminals also have the scroll-bar removed.
I use the smart-borders, so that my windows only get 1-pixel borders when they are not in full-screen.
I have focus-follows-mouse and mouse-follows-focus. The left Windows-key acts as the modmask-key, i.e. the main key to activate Xmonad stuff. Alt is the default, but that interferes with Emacs.
I like that there's nothing to distract me while coding, and that I use all of my screen real estate for the task at hand, instead of menus, task-bars and the like. Especially the lack of a task-bar is an advantage in my opinion, as I am not tempted too much by my browser while working on code in Emacs.
Floating windows like print dialogs annoy me sometimes. Especially when they steal focus. I should be less lazy and fix those.