I see often that people line up their body to the target, either by looking over their shoulder while at address or putting the club hip high and pointing it to the target. I affectionately call this technique “the limbo stick.” If the club face is pointed to the intended target, your body and feet should be parallel to that target line (i.e. railroad tracks).
The best way to practice consistency with alignment is to put alignment sticks on the ground parallel to eachother, one by the ball and one by your toes.
It also helps to check that your shoulders are over your feet. Another common error I see is lining the feet parallel to the target line, but having the shoulders too open or closed at address. You can check this by putting your club across your shoulders at address to see if they are aligned over your feet.