This is likely to become commonplace-for more than just clothing, I think.
Further info: http://singularityhub.com/2013/02/28/high-tech-clothing-store-hointer-employs-robots-and-mobile-technology-instead-of-salespeople/
Further info: http://singularityhub.com/2013/02/28/high-tech-clothing-store-hointer-employs-robots-and-mobile-technology-instead-of-salespeople/