We have a porch light that we used to keep on all the time. We would just forget to turn it off. Now that I have a smart bulb in there, it’s running a schedule (5pm to 5am), so I’m saving 12 hours of electricity.
There’s a cool calculator that figures out how much money you save per year. Running that 8.5 watt bulb for 12 hours less a day, saves me $3.72 a year.