hi all- I always wear my dress shoes soled with rubber (vibram or something like that). Hate wearing shoes with plain leather sole bottom. It feels like I don't have enough traction especially when walking up/down stairs. In NYC, I used to get both sole and heels done for about 30 a pair (at a tiny joint at 55th and 9th ave). In San Fran, most places in financial district quote 55+. Can anyone please suggest a cheap place I can get this work done at? I have 3 pairs to do, so even saving 10-15 a pair is material.