We have to wonder if sisters Donna and Erica Barton have spent their entire lives fighting about clothes. At just four years apart in age, there had to have been some unauthorized sharing in childhood. And, for the past three years, they've run Slinky Whistle Bait, a retro, recycled and renewed clothing store just off the courthouse square in Denton, focusing on post-World War II vintage, punk, mod and other specialty items. Now it's "I want to use the leg warmers in my window display" instead of "I want to wear the leg warmers to class picture day."