One thing that has always bothered me in Maya was that some windows were dockable, but some weren’t. Especially the outliner not being dockable by default has always irritated the crap out of me. That’s why I made this very small, simple script that allows you to take any open window and dock it on the left, right, top or bottom. That way you can merrily work away in 4 views while still having another window docked on the side. Grab it here.