When he travels overseas, he is always sure to carry over a suitcase with a thousand or so British power cables (server manufacturers include both U.S. and U.K. cables with their products, so every data center regularly throws away the foreign leads). He sells them in London for a pound each, financing his round-trip airfare and hotel with his e-waste arbitrage.
But how does he get all these cables?
The story is here and the guy's own website is here.
Hat-tip : Andrew Sullivan