The way to remember the "righty tighty" stuff is to use a rule of
thumb from physics called the "right hand rule". It is used for
electro magnetic flux and torque vectors.

if right hand threads
  use your right hand
  point your thumb in the direction you want the object to move
  turn the object the direction your fingers curl
if left hand threads
  use your left hand

This works great when you trying to turn a nut on the other side of something.


"http://en.wikipedia.org/wiki/Right_hand_grip_rule"
"http://en.wikipedia.org/wiki/Torque"

Blake