Need to get your Betty Draper on? Head to Donna’s Dress Shop (1410 West 39th Street, 816-931-0022) today, when the boutique that’s based on wearable vintage holds a time-traveling cocktail party. Expect a sizable range of dresses, both new and from decades past, plus a collection of ’50s and ’60s jewelry designed to create an accessories shop good enough for Betty herself. Anyone arriving in cocktail attire from 5 to 9 p.m. will receive a discount, and the best dressed of the evening will win a prize. Perhaps the winner could take a celebratory snap in the on-site photo area? Either way, a specially selected cocktail or holiday-party dress could be just the trick to make the Don Draper in your life take notice.