It starts in your room. I have my office in my room. All 10 screens + 4 computers that i need to keep on Sleep mode to keep the state. So many leds everywhere i need to wear a blindfold to sleep. Routers are the worst.
Outdoors, I've made all my lights activated by motion and door-opening sensors, and have been transitioning to light with less splash. E.g. 592nm LED strip placed 2ft over the ground pointed downwards along walkways, so they only light up the walk way and just provide enough light to see clearly and safely... instead of floods.
I find it so much nicer to not have my night vision blown out by my own lights.