Yeah ok, I've got one. This was taken from a Bob Rotella book, but really, really helps. It can also apply to any on course situation, but really has its roots in putting. You ever see guys on tv or the sticks at your local track wearing rubber bands on their wrists? Do they all sympathize with the destruction of rubber trees and are wearing these bands as a sign of unity against this terrible crime against all things green? No. It's a free reminder tool to get your thoughts back on track. All it takes is a slight tug and release, SNAP. "Man, I just nearly putted off the green on the last hole, I'm really nervous now" SNAP. "I can't believe I 3 putted twice already, now I've got another 6 footer for par" SNAP.
Use this as a "reset button" for your pre-shot routine and your mental state. It's a cliche' I know, but what is past is past, nothing you can do about it now. If it's that hard to make a 6 footer when your stroke hasn't been all that solid, how successful do you think you are going to be when you are doubting yourself too? Every shot is total committment, if you don't believe in it, trust it, feel it, SNAP, reset, start over. 100% full focus, committment and belief on every shot.
I shared this tip with a friend of mine who was putting just horribly one day, and since I only had the one rubber band, I lent him mine. On the very next hole, he actually stepped away and snapped the rubber band. 15 times. And missed the putt. "I don't understand, I snapped my wrist like 15 times there." It's not voodoo magic, it's a reminder to your brain, the same one that tells you that you are going to fail, to shutup and get out of the way. You've made hundreds of these putts, why is it so hard to believe that you can make this one?