Power scheduling network hardware not only saves money, the planet and the MTBF, but it also keeps hackers from dialing into the network when you're in bed and they are eating their midday bun cha. PoE scheduling is good practice. But don't turn off the CCTV or the IP recorder!
+ I once used a device that powered down my printer and monitor when the computer switched off. It was called an eco-plug. You may have been sent one or similar by your energy supplier. Piece of unreliable junk that received a premature teardown for parts. I think I just kept the LED.
In a domestic setting, there is a ton of stuff that's always on and turning the meter. Not just the phone chargers, fridges, aircon and heating system, but other 'subliminal' stuff like cookers, hobs, ovens, extractor fans and dish washers. Maybe even the solar panel inverter is secretly sipping the off hour watts? There is only so much that can be turned off.
One saving you can make....