ALIGNMENT AND AIM.

I find alignment and aim in golf is a very common fault for lots of players. It is crucial for players to aim accurately for them to swing on the correct swing path. But it is not as easy as you might think, it should not be taken for granted and needs to be practised. Firstly, the club face should be square to the target line. For instance, if you are setting your club face right of the target line, it will be inevitable that your body will face that way too. This you can check regularly, just by putting a card or tee down on the ground, anything with a straight line, to check your club face position. Your eyes can soon get used to the wrong lines and when you look at it crooked for so long, it starts to look right when really it isn't. You will find then, that you will be manipulating your club face during your golf swing in an attempt to start the ball in the desired direction. When you practice, always use alignment sticks or Powerlines, this is the quickest way for your eyes to see the straight lines.
The longer the club the more inaccurate you can be, as you are standing further away from the ball. In my 22 years of coaching, by far the largest proportion of golfers aim mostly too far to the right, (right handed players).