I'm certainly no authority, and this is solely based on a tip given from a friend who happens to have more experience than I do...with that in mind:

kind of like how hairnet mentioned "scraping crap off the bottom of your shoe" in the 2nd post, keeping the sole of your foot parallel to the ground as you go through the pedal stroke.

again, I'm no pro and neither is the one I garnered this advice from....if I'm wrong please correct me. Having a base of proper form while I'm still in my first year of serious riding would be nice.