Don't Hold On for Dear Life
In general, golfers think that to hit the ball far, they must hold the club tightly. In fact, that strategy results in slowing down the muscles and hitting the ball a shorter distance. Instead, think in terms of a 1 to 10 scale, with 10 being a death grip. To shoot lower scores and hit the ball longer, try to grip the club at about a 7, and you will hit the ball both longer and straighter.
"V" Stands for Victory
So many problems you may have on the golf course may stem from not having your Vs in the right position. Vs are what you see when you look at your hands at address. Simply, the Vs are created by the forefinger and thumb of each of your hands. If you are right-handed, the V created by your left hand should be pointing at your right shoulder, and you should see the first two knuckles of that hand. The V created by your right hand should be aimed at your chin at address. This, alone, may solve many of your problems.
Think of Putting Cross-Handed
The problem with most amateurs is that they allow the breaking down of their wrists when they putt. Some of them, even some touring professionals, have adopted a cross-hand style of putting that has solved that problem. Whether you are left- or right-handed, simply switch the positions of your hands. Although this may seem awkward to you, it will result in both your hands working as one unit, a criterion for making more putts. One final thing: Keep the wrist of the hand at the top of the club flat through impact and both of your hands ahead of the ball during the entire stroke.