Plan no less than an hour to wander the aisles of Blackwell's. For two decades, the refined Mrs. Blackwell has sold the very best of gently used china, glassware, geegaws, housewares and assorted stuff (fishing rods, costume jewelry, old washboards, old -- but full -- bottles of Take Five cologne) from her store. For the past eighteen years, she's neatly filled dozens and dozens of shelves (and a warren of rooms) inside the former Washington Laundry with things that no stylish Kansas Citian should live without. Need a birdhouse, a birdcage or a Lady Bird Johnson commemorative mug? Ashtrays that have outlived long-closed restaurants? Paintings with religious themes? You can do a Martha Stewart number on your kitchen with vintage cookie jars, copper Jell-O molds, 1950s coffee percolators and 1970s avocado-colored turkey roasters. And the prices are nearly as retro as that copy of Greatest Hits of Edye Gorme, which really is something to sing about.