Last night at the tents, I ran into Melissa Bailay, who was wearing a fabulous ’20s-inspired flapper dress. Between her and Jennifer Garner, fashionistas everywhere are getting into the Roaring ’20s style. Sport your own retro-chic ensemble (above) for $248 from Bloomingdales. Now if only I could get my hair to make those adorable ’20s-style finger waves…