National Doughnut Day is celebrated annually on the first Friday of June, which falls on June 7. To celebrate, Dunkin is offering freebies and an “expected partnership.” On Friday, June 7, Dunkin will offer guests a free classic donut of their choice with the purchase of any beverage while supplies last. In addition, Dunkin’ has partnered with the sponge brand and Shark Tank wunderkind Scrub Daddy to “tackle those inevitable coffee spills.” A specialty Dunkin donut-shaped Scrub Daddy will be available to purchase online. Dunkin’ isn’t the only chain getting in on the celebration; Krispy Kreme, Duck Donuts, VooDoo Doughnuts, and Shipley Do-Nuts are all doing giveaways. What’s your favorite donut flavor?