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 Client Lunches Are Worth It, Research Shows: Real Ad Headlines from 'Mad Men' Era Throwback Thursday: More Ad Age Stories from 1969 By Michelle Dopp and Ann-Christine Diaz, Published on May 15, 2014 0 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.