Before heading out, ensure your vehicle is ready for foggy weather. Clean all windows, mirrors, and lights thoroughly to prevent glare and improve visibility. Check that all lights, including fog lamps, hazard lights, and brake lights, are functioning properly. Inspect wiper blades for wear and fill the washer reservoir with a suitable fluid to prevent streaks and freezing. Familiarise yourself with the demister, defogger, and air-conditioning controls to clear interior fog effectively.