Stuck for dinner plans? The 16th letter of the Greek alphabet/numerical constant that describes the ratio of a circle’s circumference to its diameter can help you save tonight! Just take advantage of one of the National Pi Day pizza deals offered Thursday, March 14 only at these national chain stores and eateries. Too late for dinner? Stop by Whole Foods and snag the other pie – the bakery kind – for dessert. Please call in advance to make sure that your nearest location is participating and that the deals are still available (many of them are labeled “while supplies last”).