1. Turn off your lights when you're not using them. This is the easiest way to reduce light pollution. When you leave a room, turn off the lights behind you. You can also turn off lights in unused parts of your home, such as the basement or attic.

2. Use dimmer switches. Dimmer switches allow you to control the brightness of your lights. When you don't need a lot of light, dim your lights down to reduce light pollution.

3. Use motion sensors. Motion sensors can turn on your lights when someone is present and turn them off when they're not. This can help you save energy and reduce light pollution.

4. Use shielded lighting. Shielded lighting directs light downward, where it's needed, and reduces the amount of light that escapes upward into the sky.

5. Use energy-efficient light bulbs. Energy-efficient light bulbs use less energy and produce less light pollution. When you're replacing light bulbs, choose energy-efficient bulbs over traditional incandescent bulbs.

6. Be aware of your surroundings. When you're choosing where to place lights, be mindful of the surrounding area. Avoid placing lights where they will shine directly into neighbors' windows or into the night sky.

7. Get involved in your community. Many communities have light pollution ordinances. If your community doesn't have an ordinance, you can work with your local officials to get one passed. You can also support organizations that are working to reduce light pollution.