By Jim Donovan

By Jim Donovan:  National Coffee Day is Sunday, September 29, and Dunkin’ Donuts will celebrate by treating fans to a free small hot or iced cup of coffee.

The offer is available and redeemable only on September 29 through the “My Offers” tab of the Dunkin’ App, the brand’s app for mobile payment and gifting.

The Dunkin’ App is available for free from the App Store on iPhone or iPod touch or at and from the Google Play Store at


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