Sadly, thanks to another bugbear of mine with the Surface Book, I'd need to carry the dock around with me rather than leaving it at the office if I wanted to do that at home.

This is because the Surface Book itself only has one mini display port connector - you need the dock if you want to connect two monitors.

Let me say it again: I do not recommend anyone buy a Surface Book (although ironically the author of the article would probably quite like its screen's aspect ratio).