If you haven't tried a couple of weeks of barefoot (Vibram Five Fingers, Vivo Barefoot or any of that kind), I highly recommend it. With regular cushioned shoe

If you haven't tried a couple of weeks of barefoot (Vibram Five Fingers, Vivo Barefoot or any of that kind), I highly recommend it. With regular cushioned shoes, you get in the habit of putting all your weight on your heel in one strike, which -- even with the cushioning -- sends the impact through your knees. The first couple of days with my Vibrams felt very weird and impactful on the knee (I went all in, you might want to ease in at a couple hours/day first if you do) - but then your body gets used to walking on the balls of your feet, using the heel joint as a spring, and basically saving all impact from your knees -- it makes a huge difference, even if you don't do it all the time; I find I lose the spring action after a few months without them, but then a couple of days are enough to jog the muscle memory.