Costco is slated to expand across North America over the next couple of months, with more than a dozen warehouses scheduled to open in the U.S. and Canada.The company has already been growing this year in the U.S. and beyond, opening stores in California, Florida, Georgia, Minnesota, New York, Texas, Utah and Wisconsin, as well as Mexico and Taiwan.Now, more warehouses are expected to open before the end of the year.Five new Costco warehouses are set to open in October in Lee's Summit, Missouri; The Colony, Texas; Amherst, New York; Lawrence, Kansas, and Camarillo, California.COSTCO BRINGS BAC...