by having a seamstress add contrasting grosgrain ribbon in a Greek key pattern. “Just get some ribbon, and you can make any pattern,” she says, “and you can find a seamstress anywhere — it doesn’t have to be through an upholstery shop.” Sorenson used the same design trick on the curtains, adding black ribbon to the ivory panels in her living room. For ideas and supplies, she regularly peruses the Web site for M&J Trimming, the New York decorative trim mecca (www.mjtrim.com).