When working with aluminum sheets, it's crucial to wear appropriate personal protective equipment (PPE), including gloves to prevent cuts and eye protection to shield against flying debris. Ensure good ventilation to avoid inhaling dust or fumes from cutting or polishing. Use sharp tools to minimize the risk of accidents and always cut away from your body. Keep the work area clean and free of clutter to prevent slips or trips. Be cautious of electrical hazards if using power tools, and ensure all tools are properly grounded. Finally, be aware of the fire hazard potential of aluminum dust and store it safely away from ignition sources.