Or you could use the edge of your left palm to hit CTRL. This reduces strain and is much faster. It's the way I could use Emacs to write my thesis and only won

Or you could use the edge of your left palm to hit CTRL. This reduces strain and is much faster. It's the way I could use Emacs to write my thesis and only wonder about those stories of RSI. On Mac and Linux, I have CTRL-Number set to switch workspaces.