“Mom, don’t lose this,” my older daughter said. “It was expensive.” I had opened my gift, and I was admiring my shiny stainless cup with a tight lid. It could keep hot beverages hot and cold beverages ...

We've all wondered how our favorite coffee spot manages to make a cup that is so much better than what we make at home, and thankfully some places like Dunkin' are kind enough to tell us exactly how.