Another afternoon of rain in Arlington: Stan Lou has stopped on his way home at the Wednesday afternoon Clarendon Farmer’s Market to pick up corn on the cob. He packs it on top of the tomatoes in his bicycle saddlebag. He has joined several other customers at Gonzales Produce from Tappahannock, Va. in spite of the heavy storm that just drenched the pavement by the metro stop. Lou says he only has less than a mile to go because he lives close to the market.