[BrianHV]

I forget where I saw this tip, but after making this mistake several times I remapped command-Q in Chrome to the "Zoom" command. (Keyboard control panel -> Keyboard Shortcuts -> Application Shortcuts). It's already saved me lots of time. And of course, any harmless menu command will work in place of "Zoom."

Edit: after I RTFA, I see this is much like what the article suggested. The only real difference is that my approach prevents you from quitting from the keyboard at all.