My Granddad's rule that he taught to my dad (who
taught me to
drive) is pretty
simple:
Everyone else is an idiot, and they don't know how to drive.
It doesn't matter how bad you are at driving, if you follow this rule you will be safe.
Also, don't believe turn signals untill you see them actually
turn. I remember following a guy on the motorway with his turnsignals indicating right for twenty minutes. In
New Zealand we
drive on the left, and there is never a right turn on the motorway. Mabie another rule would be "
Turn your radio down so you can hear the click-click-click of your indicator".