Obtain a three-foot-long two-by-four and some "Point 3" practice balls (almostgolf.com), which allow you to do this drill in your backyard without breaking windows. (In fact, I don't recommend you initially try this drill with regular balls.) Aim the board at a target about 20 yards away. Place one Point 3 ball two inches inside the board and eight inches away from the target-side end of the board.