Costco just keeps cruising. The wholesale club delivered net sales of $65.98 billion for the quarter, up 8.2$60.99 billion for the same period last year.US stores saw strong comparable sales growth of 5.9%, propelled by a 2.6% increase in traffic and a 3.2% increase in transaction size. CFO Gary Millerchip also said the holiday season has been a record-setting one for its US warehouses.The food court sold 358,000 whole pizzas for Halloween, and more than 4.5 million pies in the three days leading u ...