I fear sounding like an advertisement, but....

ITS ALL ABOUT THE SUPERFEET. They are insoles that you put in your shoes and they help to position your foot right. Yes this effects your knee as well as your alignment etc.

If you dont belive me, perform this test (superfeet required - they have them available to try at any athletic shoe store): stand barefeet, legs hip distance apart, knees slightly bent and arms straight out in front of you. have a friend try to push your arms down while you try to keep them parrallel to the ground. Notice your weight shifts to your toes and you come off your heels. NOW, put the superfeet on the ground and just stand on top of the insoles as if they were in a shoe. Now perform the same test with your friend. This time notice that your weight stays evenly balanced at the center of your feet and your heels and toes are both firmly on the floor. Also notice that you are able to keep your friend from pushing your arms down with less effort. And then if you are me you spend your grocery money for every pair of shoes you own. They really help me since i pronate badly and am pigeon-toed.

They really should pay me for this.