There are other stretches that you can do to lengthen the ligaments in your calf (they get tight and pull on the ones in your feet, which pull away from the bone forming the "spur.") Stand arms-length away from the wall, arms straight out from the shoulder and palms on the wall. Then bend your elbows, bringing your nose to the wall. If you don't feel the stretch, try turning your toes in (pigeon-toe) and out, then stretch.
I have a closet full of really cute shoes that I never get to wear (I'll only go 2-3 hours out of my sneakers every so often).
