From Slate: Attack of the Giant Shopping Carts!!! Have you noticed how huge carts have gotten? Giant sport utility shopping carts. Some people say buggies — it won’t be long before we’ll need to hitch mules to the things just to get to the dairy aisle in the back of the store. Or perhaps train tracks in the aisles to make things easier. The carts could have those nifty up & down pumping levers like good old-fashioned handcars. Several stores around here have already installed cup holders on the shopping carts. Cup holders!