Money The riddle of the red cup: How Starbucks made a reusable container a holiday tradition November 24, 2021November 24, 2021Nina Mandell, USA TODAYComments Off on The riddle of the red cup: How Starbucks made a reusable container a holiday tradition The reusable, red holiday cups at Starbucks are a ubiquitous part of the season, and experts say there are many factors behind the promotion's success