Yes, there are several case studies and real-life examples that you should be familiar with in commerce. Here are a few:

1. Amazon: Amazon is a prime example of a successful e-commerce company. Understanding how Amazon started as an online bookstore and expanded into various product categories can provide valuable insights into e-commerce strategies, customer-focused approaches, and supply chain management.

2. Coca-Cola: Coca-Cola is a multinational beverage company that has successfully built a strong brand image and implemented effective marketing strategies. Studying Coca-Cola's marketing campaigns, brand positioning, and globalization efforts can provide insights into branding, advertising, and international business.

3. Uber: Uber is a technology platform that disrupted the traditional taxi industry. Analyzing Uber's business model, the use of technology, and the challenges faced while entering new markets can provide insights into the sharing economy, disruptive innovation, and dealing with regulatory issues.

4. Walmart: Walmart is a multinational retail corporation known for its low-cost strategy and supply chain management. Understanding Walmart's pricing strategy, inventory management, and expansion strategies can provide insights into retail operations, cost leadership, and global supply chain management.

5. Tesla: Tesla is an electric vehicle manufacturer that has revolutionized the automotive industry. Studying Tesla's innovative approach to electric vehicles, sustainable energy solutions, and direct-to-consumer sales model can provide insights into disruptive innovation, sustainability, and alternative distribution channels.

These are just a few examples, and there are many more case studies and real-life examples available in commerce. It's important to research and explore case studies relevant to your specific area of interest or industry.