One of my favorite people in the world got his ecommerce start, in a fun, smart, borderline crazy way: he discovered a unique demand online for certain items (can’t give it away!) that could be found at your average garage sale or flea market. He’d buy them, sell them on ebay, and make a handsome profit on the exchange. That was a long time ago, when ecommerce was a new tool for consumers and businesses alike, the concept of …