Not that I always follow it...
  1. People are "and" people, not "or" people.
    People can be jackholes AND then turn around and be nice. Don't dismiss people, they can surprise you.
  2. Use the ignore method as necessary.
    Mostly applicable at work. Someone asks a dumb question via email...delete. Someone says a rude comment and you can't respond professionally...walk away
  3. Pick your battles!!!
    No. I want to battle it all! I really should take this advice.