What are three tips I should keep in mind before beginning work inside a computer case?

Before beginning work inside a computer case, ensure you’re grounded to prevent static electricity damage by using an anti-static wrist strap or touching a grounded metal object. Disconnect the power supply and all peripherals to avoid electrical shock. Organize your workspace and familiarize yourself with the components to streamline your process and minimize the risk of damaging parts. Lastly, handle components by their edges and avoid touching the circuitry to maintain their integrity.