“After years of aspiring to improve software usability, I’ve come to the extremely humbling realization athat the single best thing most companies could do to improve usability is to stop changing the UI so often! Let it remain stable long enough for us to learn it and get good at it. There’s no UI better than one you already know, and no UI worse than one you thought you knew but now have to relearn.”
Just go and read the damn thing. In fact, if you’re developer, print it, frame it and stick it on your office room.