To optimize the use of smart light switches with voice assistants or smart home hubs: 1) Ensure that your smart light switch is compatible with your preferred voice assistant or smart home system. 2) Set up the integration following the instructions provided by the manufacturer. 3) Use voice commands to control your lights, such as turning them on or off, adjusting brightness, or creating custom scenes. 4) Explore additional features and automations offered by your voice assistant or smart home system.