Tesco is proof of the good a little dressing up can do. the world's fourth-largest grocery retailer, tesco runs about 5,380 stores in the uk (where it's the #1 retailer), and more than a dozen other countries in europe, asia, and the us (under the fresh & easy banner). built on the "pile it high, sell it cheap" creed of founder sir jack cohen, tesco abandoned its discount format, with its down-market image, for a variety of dressier midmarket formats. its operations include supermarket, convenience, and gasoline retailing (tesco express), small urban stores (tesco metro), superstores (tesco extra), and financial services (tesco personal finance). tesco.com is britain's leading internet delivery service.