BOSTON (AP) — The Dunkin’ coffee chain says customers will have to do without a “double cup” for their iced drinks. A new campaign focused in Massachusetts and Rhode Island tells customers they can no longer nest their iced drinks in a second, foam cup for extra insulation as the company moves to eliminate its polystyrene cups. The brand says the double-cup habit was started in New England and is most common there.Read more on NewsOK.com