Elegran
We complain about paying a standing charge to energy companies before we even use any power, so why do we hesitate about preventing an appliance from costing us even when it is not being used?
If that £40 a year is correct, that would be £40 less on our total annual bill. If we spent that £40 on remote controls for sockets in inconvenient places ( £31.29 for 5) , it would help us the next year to switch things off with fewer contortions, as well as saving again in the future.
I do turn off my PC when not in use and lights when not needed, but not anything else.
Maybe I should get one of those gadgets to test my appliances, but I'm still not convinced it's worth the faff.
My electricity usage bill is currently just over £10 a week (I guess that will almost double in October. That's dwarfed by standing charge, VAT and my winter gas bill. If I could save 50% of my electricity usage bill, I think it would be worth it.