I Haven't posted in awhile and I can't remember if this one was already posted. But even if it has, it's worth repeating...
When waiting at a stop light don't be the first one to pull into the intersection when the light turns green.
Scan left-right-left (right-left-right for those that drive on the left side of the road) before pulling out. The time that takes could save your life. Then continue to scan as you proceed through the intersection.
If it's a multi lane road let someone else pull out first so they take the hit from the idiot that runs the red light.
If you practice doing that with all vehicles you drive/ride it will quickly become a habit.
Past Bikes.....Check with my Wife.....I've lost count :-)