Another chain of stores will close some locations, affecting shoppers in Iowa. Osco Drug will close fifteen stores in the state, most of them in Des Moines. Last month it was news that K-Mart will close four department stores in Iowa, and earlier last winter, Albertson’s closed several of its super-sized grocery stores. Boise-based Albertson’s is actually the chain that owns Osco, and in January it sold eighty Osco drugstores to another chain in New England. Now, the corporation says some of the Osco stores it’s giving up will be sold to another competing chain, Walgreen’s.