Dunkin' Donuts <br />Giving Away Free <br />Donut Fries On 7/13 If you didn't know, July 13 is <br />National French Fry Day. In an effort to get in on the celebration, <br />Dunkin' Donuts is offering free Donut Fries. The incredibly popular Donut Fries <br />launched earlier this month. If you <br />haven't tried them yet, now's your chance. 25 participating locations will supply <br />a free order of the Donut Fries to the <br />first 100 people through the door. The promotion will be <br />between 10am to 2pm local time.