By CBS3 Staff

PHILADELPHIA (CBS) — It’s National Doughnut Day. National Doughnut Day honors the Salvation Army women who served the pastry to soldiers during World War I, known as “doughboys.”

Americans eat 10 billion donuts a year.

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Here’s where you can get deals, freebies, and special flavors on National Doughnutt Day: 

Dunkin’ Donuts

If you buy any beverage at Dunkin’ you get a free doughnut. 

Krispy Kreme 

Krispy Kreme is being a little more generous than Dunkin’. You can get any doughnut free on Friday, and you can get a dozen original glazed doughnuts for $1 with the purchase of any dozen or 16 count minis. 

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Federal Donuts

Philly’s own Federal Donuts is offering six of their fancy donuts for the holiday. 

The shop doesn’t necessarily have a deal, but you can get a “National Donut Day” T-shirt at all of their locations only on Friday. Click here to find the closest store near you. 

Dottie’s Donuts

 In West Philly, Dottie’s Donuts is offering a cherry lime pistachio donut topped with a matcha sugar cookie dough ball as their chef special to celebrate. 

Duck Donuts

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If you enjoy cinnamon sugar doughnut, Duck Donuts might be the place for you to go. The shop is offering a complimentary cinnamon sugar donut on Friday, but the deal is available inside stores at participating shops.