**Table of Contents** 1. **Introduction**     1.1 Overview of a Circular Economy     1.2 Defining a 100% Circular Economy 2. **Understanding Standard Reusable Containers**     2.1 Evolution and Necessity of Standardized Containers     2.2 Types of Reusable Containers: A Comparative Study     2.3 Design Principles for Standard Reusable Containers     2.4 Standardizing Container Sizes and Dimensions 3. **Product Delivery and Return Systems**     3.1 Role of AI in Product Delivery and Return     3.2 Design and Functionality of AI-Controlled Electric Drones     3.3 Optimization of Delivery and Return Processes  4. **Business Plan for a Circular Economy**     4.1 Feasibility Study     4.2 Investment and Financing Strategies     4.3 Revenue Streams and Cost Analysis     4.4 Risk Assessment and Mitigation Strategies     4.5 Launch and Scaling Strategy...