[dhart]

Don't have a Canon, but what I do on my Nikon is choose a specific autofocus point in the viewfinder. If I am taking a photo of a landscape or a moving target, I will choose the one in the center. If I am taking a portrait I will choose a focus point on the right or left. I choose the one on the right more often so when I turn the camera sideways, the focus point is just about where I want their eyes to be anyways. And when I am in landscape orientation, an offcenter focus point gives me the option of keeping my subject out of dead center and has actually helped my framing a lot! I just made this change (from center focus point to off-center) and it's been really amazing.