One of the best pieces of advice I ever received (as a quick fix during
a round when time to adjust was not really on my side) came from
my partner during a two man best ball event. I was constantly striking
my tee shots off the toe of the club. His advice: 'Address the ball
off the heel'. This eliminated any need for a complicated mechanical adjustment during
the swing.
By placing the ball adjacent to the heel, I was able to continue swinging in the same
manner that I had, but now the club head was moving from the heel back
to the center of the club as opposed to moving from the middle out to the toe.
Remember, the golf course is no place for a swing "overhaul." Only fine tuning and
simple adjustments have a good chance of working in that situation. 
