From bulky, round "snap" switches to tidy 2-button switches, to today's simple toggle switches, light switches get more slim and trim the longer they're around.

Ah, if only this evolutionary slimming principle could apply to us...

Wishful thinking aside, what we do know is that toggle switches emerged in the early 1920s. And that last incarnation must've been a pleasing one, because it's stuck around ever since.

See more items from our Switchplates category.