I have a mixed use room -- my telecommuting work office combined with my sewing/quilting room. I've only had it since we moved to this house in August and it was one thing we definitely had to have when picking a house here. I am blessed!
Plus we have a huge storage basement room right off my mixed use room with wooden garage shelving that I can keep a lot of supplies (both quilting and scrapping) in....I hope I never have to move! LOL!