Here’s a great safety hack I picked up recently: adjust your car mirrors to capture more of the blind spots. From the authors :
“For years, we’d been setting our side-view mirrors so that they gave us a view of the back corner of our cars. This is the way it’s been done for generations – from grandfather, to father, to us! But we finally discovered something very interesting. The back corner of the car never moves. It always stays in the same exact place. So there’s really no reason to keep an eye on it.
By moving the side mirrors farther out, you can line up all three of your mirrors so they have minimal overlap — and you can see everything behind you and beside you.”
Duh! Why aren’t we all doing this? I’ve tried it and it works great. Visit the site  for the downloadable pdf that includes easy steps and a visual guide (you’ll need it to do this properly).
Further Hack Reading: