Lesson 01
Mission Control shows every window at once
When you can no longer find a window, showing every window at once is pleasantly unsubtle.
⌃↑
When you have lost a window in a pile of twenty, this spreads them all out on one screen so you can see and click the one you want. It is the fastest way out of window chaos.
Do this now
Open six windows across three apps, deliberately bury one, then press ⌃↑ and click straight to it.