I dunno, I did this (right hand turns whenever possible) like 20 years ago in my first job, when I had to drive around Toronto. So I doubt I am the only one who thought of this before ...
No doubt, I've been doing it too for a while (although my reasons are safety-based). But not everyone has access to a modeling tool (and the data) to create a business case that convinces a big multinational to make it into corporate policy.