a tip i have read in magazines was to line two irons parallel to each other pointing down the target line and square the clubface and your feet to the clubs on the ground.your shoulders,chest,and hips should be parallel to the irons on the ground aswell.i use it alot aiming at flags at the range i have also used it on the course when there was no one behind me so i didn't slow players down just to get the sense of proper alighnment in a real world environment.I also seen it in a book by David Leadbetter called 100% golf that helped alot.