While other sites are promoting today as Darwin Day, we feel it important to point out also that the US Census Bureau says that February is Return Shopping Carts to the Supermarket Month.. Evidently nearly 2 million shopping carts are stolen each year, and the environmental impact is huge. Cart Month was the idea of Anthony Dinolfo, a grocery store owner whose carts had turned up just about everywhere imaginable. As he watched the 1969 historic event of Neil Armstrong walking on the moon, he had amusing thought. "I said I wouldn't be surprised if he found a shopping cart in one of the craters," Dinolfo told the Chicago Sun-Times. So in honour of the occasion, pull a cart out of the ditch.