I am also turning off unnecessary lights and unplugging unused appliances to save on electricty!
This is simple shit that turns all us who do into rockstars.
BTW, there is agreat deal of controversy over unplugging charging transformers for electronic devices when not needed.
Ask Odeon. He is a physicist and he is honest. He knows. Those things draw current, constantly. Do not bother unplugging everything all the time, BUT, get yourself a power strip/charging staion where all that stuff plugs in and charge it once a day, then turn off the power strip. While it seems insignificant to leave it going, Billions of us all leaving them all going, constantly, are not insignificant at all.
Yup, they draw current. Not a lot, but like you say, if we all do it, it's not insignificant. Some of the energy will dissipate as heat but as a heating device, a charger is incredibly inefficient. The electromagnetic field that forms is even more pointless, though.