It's March 14, and any good geek knows what that means: It's Pi Day! Yep, 3/14 corresponds to the ratio of the circumference of a circle to its diameter (3.1415926535. . .). If you're celebrating today (and why wouldn't you be?) then I've got the perfect way to celebrate: ThinkGeek's Pi-Tini! Featured with their awesome Pi Ice Cube Trays ($9), it's the perfect cocktail recipe for the Pi-loving Read more