I happened to be on cartalk.com, the website associated with the NPR radio show of the similar name (which, by the way, is based out of Cambridge) and found something quite interesting: A Great New Way to Set Your Car’s Side-View Mirrors

It turns out that you don’t need to see the back of your car after all — and this method almost eliminates a driver’s blind spots (it reduces them to be so small that if a car is in one, you’ll still see it, as the blind spot would only cover a tiny fraction of the car).