Container usage is rapidly increasing, and while Docker offers significant benefits even without adopting Kubernetes, many organizations struggle with effectively transitioning from VM-based processes to containerized workflows. A prevalent issue is treating Docker containers like virtual machines, leading to inefficiencies and a lack of understanding of containers' immutable, stateless nature. High-level best practices for Docker emphasize creating transparent, self-contained Dockerfiles without external dependencies or side effects, distinguishing between development and deployment images, and maintaining a single Docker image across various environments to ensure consistency. Missteps include embedding secrets within images, using Dockerfiles as CI systems, and not leveraging Docker registries properly, resulting in security risks and operational inefficiencies. Organizations must re-evaluate their CI/CD processes and embrace Docker's unique attributes to harness its full potential.