I've typically just bought new work shoes when my old pair wore out, but my current pair of brown shoes turned out to be incredibly comfy and long-lasting. The only problem was they looked terrible (as the picture below shows).
So, tonight I broke out some ancient shoe polish and polished them. The picture below is the same shoe after polishing and adding a new $1.50 pair of laces; I can hardly believe the change.
Why haven't I polished shoes before?
And now we return to our regularly scheduled programming; I promise that this will not turn into a fashion blog (as if there were any doubt).