I consider myself an expert driver. My #1 hobby is driving and I drive only about 25,000 miles a year (40,000 km/yr). (#2-Goose & Duck hunting, #3 coins) I drag race at any stoplight with anyone who wants to drag with me. In the last 3 yrs I'm 32-1 (wins / losses. Loss was when I mis-shifted from 2nd to 5th instead of 3rd. In my xx yrs of driving, I consider these are the top 3 laws to follow when driving.
#1 KEEP TO THE RIGHT EXCEPT WHEN PASSING !!!!!!! 
#2 Use your accelerator instead of your brakes.
#3 Use your MIRRORS.
I check my mirror/mirrors approximately every 6 to 8 seconds to see what is going on.