This study explores strategies to scale returnable packaging systems to reduce plastic waste, lower greenhouse gas emissions, and conserve water. It advocates for high levels of collaboration across industries to create efficient, cost-effective reuse models. The analysis includes environmental and economic modelling across product categories like beverages and personal care, highlighting the need for policy support and industry-wide infrastructure to make reusable packaging a viable mainstream solution. Moreover, these parameters are applied to 3 packaging categories in an open loop system: food containers for takeaway food, secondary transport packaging and beverage bottles.