Finding the perfect pair of shoes can take a bit of effort; certainly it requires visiting more than one shop and trying on countless styles, different heel heights and colours. And what's more, we all well know that the perfect shoe doesn't stay with us forever. It wears out, or becomes unsuitable over time. What suited me well in my 20's when I was a promising corporate Wonder Woman and could run from meeting to meeting in skinny, high, baby blue snakeskin slingbacks (OMG I