Triumph of the small local shop today: all the chain stores (B&M, Argos, The Range etc.) didn't sell shoe brushes. Thought of giving the local market a go, found one in less than a minute and at a bargain price - so cheap in fact that I'm not sure how they make any money after deducting the wholesale price and card processing fees (I hope they were legit as they took payment on a mobile phone rather than a machine).