I keep thinking that the next big revolution in food sales will be reusable, washable containers.

Use glass instead of plastic so they're safe for industrial washers, make them in a variety of sizes such as tall narrow ones for sauces and beverages and squat and wide ones for casseroles and soups. Tight lids for safe storage and transportation. Standardized sizes for easy reuse and transferability.

We can call them "mason jars".