I`ve mentioned this before some time ago but if you press your tongue firmly against the roof of your mouth, this action has a quietening effect on the mind. This technique is used for yoga.
I must admit it feels strange when you first try it on the course

, but it does block out some of zillion unwanted thoughts that can go through your mind when addressing the ball. Padraig Harrington uses this method to aid his concentration. Although he goes so far as to gently bite his tongue

throughout his swing. If you look closely you`ll notice he often has his tongue poking out after he`s hit the ball.
C-B-C...............
