Flash: Most annoying combination of keys to accidently press

Control-Shift-W. It locks your workspace to the current movie size (meaning you can't scroll outside the bounds of the movie). This usually causes your workspace scrollbars to disappear as well. I've had to close what I was working on once because I couldn't figure out what I had pressed to get into this mode. This keyboard shortcut also seems to be missing from most 'Flash shortcut' guides and it's fairly hidden on the menu bar as well. Hopefully this blog post will save others from a similar fate.