Today, March 14th, is National Pi Day, the celebration of the first three digits of the mathematical constant Pi or 3.14. In honor of the big day, several stores are giving you the chance to save on a 'pi'. According to the Detroit Free Press, build-your-own pizzas at Blaze Fast-Fire'd Pizzas will be $3.14 for in restaurant orders only. You can find out more at their location in the Frandor Shopping Center. Another pizza deal for Pi Day is happening at Hungry Howies. Their promotion is an online, carry-out offer of a medium one-topping pizza for $3.14 with any purchase of any regular Howie Bread. You'll have to use PI18 as the coupon code in order to get the deal.

If you're looking for something different than pizza, at Grand Traverse Pie Company, you can get a free slice of Michigan ABC Pie with any purchase. At Kroger you can buy an 8-inch Kroger fruit pie for only $2.99 and at Whole Foods, customers can save $3.14 off one of their large fruit pies while supplies last.

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