As the holiday shopping season unfolds, retailers were giddy in October due in part to strong sales for motor vehicles and building materials. Retail Sales jumped 0.8 percent versus the 0.5 percent and up from 0.1 percent in September. It was the largest increase since May's gain of 1.2 percent. The Core rate rose 0.7 percent, above the 0.5 percent expected. Consumer spending accounts for more than two-thirds of U.S. economic activity.