mad max

Like everything at Costco , the shopping carts are extra-large. Shelby Blessie isn’t. At 4 feet, 11 inches tall she cranes her head to peer over the top of her cart as she maneuvers through a sea of shoppers weaving wildly in and out of crowded aisles as they scout deals and graze on samples. Too often she has to slam on the brakes when people stop short – was that BBQ Chicken Mac and Cheese with Bacon? – or swivel on a dime to scoop up that 25-pound bag of rice they forgot a few aisles back. “I have had people who didn’t see me run right into me or trip over me,” the 34-year-old Kansas City,