That's my way too. A single click is always simpler than navigating a task switching interface, so I just have "big window" on left, "mid size window" peeking out at its right edge, and then "little window" - usually textedit - poking through in back. It's like a little sideways pyramid. I can also alt-tab through them super easy. Never found much use for Expose or Mission Control, i consider having to use them an organizational fail state for my process.