I wanted to bring you Pi Day Deals for 2021 By: Sara Skirboll, Shopping and Trends Expert at RetailMeNot. For those of us not sure when Pi Day is its March 14th still time to get these deals. 7-Eleven To celebrate the holiday on March 14, participating 7-Eleven stores are serving up large pizzas for $3.14 each. Available in cheese, pepperoni and extreme meat varieties, this savory Pi Day deal will be available in stores through 7Rewards in the 7-Eleven app or can be ordered through the 7NOW delivery app for home delivery or order-ahead pickup! In addition to helping you save with this yummy pizza deal, 7-Eleven will also…