I would use auto-hide feature of the launcher but it's a bit annoying that it doesn't react in a sensitive enough way. Wonder if there is a way to make the launcher appear even before I touch the edge of left screen side? Like by 50px would suffice. I don't mind launcher appearing more often when I don't intend.
ps. Of course it would be great if Unity could guess by mouse inertia when the user intents to seek the launcher (but that's more of a futuristic feature request)