I like to waggle before I go. On a normal shot, I waggle the clubhead back and forth along my target line. For a fade, I waggle on a slightly out-to-in path. For a draw, I follow an in-to-out line.
WHAT I THINK NOW
Today, when I want to hit a fade, I also open my left foot, which allows me to clear my hips more fully. For a draw, I open my right foot, because that allows me to make a fuller hip turn. A lot of modern teachers advocate restricting hip turn, but that's a totally unnatural movement.