A shop that sell 2 different products: containers and food. The main goal of the shop is to push people to reuse the plastic/glass container they already have at home without trashing/recycling them.
The sold food should be sold without box so that people can fill their personal containers. Since bringing empty containers to the shop is quite annoying, a service that buy, clean and sell containers will be provided. Instead of trashing empty containers, the buyer can bring them to the shop and get a discount on his fidelity card. The shop will clean the container and sell for a cheap price to others.