If you live in Santiago, Chile, and run out of dish soap or detergent, you don’t need to toss out the empty bottle. Instead, in a pilot that the Chile-based startup Algramo been running since May, customers can bring a reusable plastic bottle back to a vending machine mounted on an electric tricycle that travels around the city offering refills. An RFID code on the bottle gives discounts on future purchases, creating an incentive for customers to bring the same package back over and over again.

Image Credit: Unilever