"My caddie, Stevie Williams,
and I have charted the greens
on every course we've played.
That knowledge is essential
to a tour player because we
basically play the same courses
every year. I recommend
similar due diligence for you
on courses you play a lot.
Take notes on hole locations,
paying attention to breaks
and direction of grain. You'll
be more comfortable on the
greens - and make more putts."

Tiger Woods
Lesson Tee, Golf Digest
April 2008.