If you're of a certain age, you probably remember your first clunky metal lunch box. Emblazoned with everything from Teenage Mutant Ninja Turtles to Barbie, these tin containers were a required ...

These days, if we're taking our food to-go, we're almost certainly packing it in some combination of plastic, or perhaps a soft-sided insulated lunch tote. But back in your grandma and great-grandma's ...