Here's a really simple, but effective putting tip to help you strike your putts solid and square every time. You'll need two 3-inch nails, about 11 feet of kit string, and a Sharpie. You'll want to perform this on the practice putting green at your local golf course.

There are some tips for getting the most out of the time you spend on practice putting greens. Lot of golfers are doing that on courses.

Lag Putting Golf Drill - Putting to Equally Spaced Strings Will Help Improve Distance Control.

This article gives some great insight on reading the greens before attempting your putt.