Shunning Retirement for Start Ups Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Sixty-eight-year-old Barb Blume arranges yarn at the Mosaic Yarn Studio July 26, 2002 in Des Plaines, Ilinois. Blume is a retired nurse who turned her hobby of knitting into a second career. ( Tim Boyle / Getty ) Produced by Ellen Frankman and Mythili Rao Produced by PRI and WNYC