I have started implementing a practical tip that is helping me. I actually got this tip from the handbook (a pretty useful little booklet). I have begun pinching myself. I know it sounds pretty dumb and ridiculous, but frankly I don't really care, as long as it works. So whenever I walk down the street and my eyes go looking at a woman or any other thing I shouldn't be ogling at, I give myself a good pinch till it hurts. And let me tell you, it hurts to get pinched, especially when you are doing it to yourself. I recognize that I am more conscious of where I am looking. Before I didn't even realize.
Try pinching yourself. It may work for you like it's working for me. It may sound loony but it works. Also, nobody really sees you doing it. To onlookers, it just looks like your scratching yourself :-)