A recent expedition in search of some comfortable sandals uncovered something that was otherwise unavailable elsewhere: a sharp-looking new design from Ecco, a British company that specializes in shoes made to be walked in. (Imagine that: women's shoes that are meant to be walked in for sale, here in Dallas!) The helpful salesman said the shipment was brand-new and in the store because this is the place where Dillard's tests new designs. Think of it as a year-round Detroit Auto Show for feet: If a design goes over well here, Dillard's will sell it at all of its stores nationwide. All this means that Dallas women can go to Dillard's, buy the latest design and actually help set a national trend. Oh, what fun!