So there I was, Joe Urban, sipping my morning joe, listening to NPR and reading Metropolis magazine online. In Metropolis was a short article about suburban general stores. The idea is neat – every suburban subdivision gets a bodega – a general store, where residents can, as the article explains, “pick up sundry items and drop off recycling, drop off DVDs and buy stamps – all within a five minute walk.” They claim that doing so, a 500-unit subdivision would save 45,000 gallons of gas per year. At the very moment I was reading this, NPR was announcing that Blockbuster…