Fkeys (they're on every keyboard) and single letter commands are easily adoptable. I dig this one. On my mac, I always set it to let the F keys behave normally

Fkeys (they're on every keyboard) and single letter commands are easily adoptable. I dig this one. On my mac, I always set it to let the F keys behave normally. I hit fn + an F key to change volume, etc. I map all my f keys in emacs to something useful and save plenty of time because of it.