This post is part of a CityLab series on open secrets—stories about what’s hiding in plain sight.
Just before 3 in the afternoon on a rainy spring day, Keith Greenleaf busts out his “bricklaying” skills. That’s delivery-driver parlance for balancing an inordinate amount of cardboard boxes on a metal handcart. As high as his collarbone he stacks them, packages labeled HP, J. Crew, Amazon Prime. “This is probably one of the first days I don’t have Pampers or dog food,” he says.