You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract McDonald's Unleashes Summer Sales Weapon: Beverages Ahead of National Advertising, Chain Is Finding Success -- and Unexpected Customers -- With Line of Frappes, Smoothies By Emily Bryson York, Published on July 12, 2010 4 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.