About unplugging adapters: It is worth noting that the EU mandated more efficient wall warts and as a result all new stuff uses negligible power when idle. But a few years ago when DC conversion was done at 50/60Hz with great masses of copper and iron, it wasn't unusual to have a wart burning 8 watts day in and day out. 70kWhr/year.
As a good rule of thumb for warts: If it is warm to the touch, it is drawing 4 watts or more. If it isn't warm, don't unplug it.
I have a Ryobi drill charger, that if I left it plugged in when idle would use as much power as my high efficiency refrigerator. (A normal refrigerator is about 1800whr/day, so that is quite a bit more than my 200whr/day, but I'm living remotely with an astronomical energy cost.)
As a good rule of thumb for warts: If it is warm to the touch, it is drawing 4 watts or more. If it isn't warm, don't unplug it.
I have a Ryobi drill charger, that if I left it plugged in when idle would use as much power as my high efficiency refrigerator. (A normal refrigerator is about 1800whr/day, so that is quite a bit more than my 200whr/day, but I'm living remotely with an astronomical energy cost.)