I’D just put the bread in the oven, the laundry in the washing-machine and was applying the vacuum-cleaner to the stairs when it struck me.
In the century or so since an electricity supply was connected to most of our homes we have become power junkies. If it were taken away we would face withdrawal symptoms so severe they might in many cases quite quickly become fatal.
It is, I suppose, for this reason that the government this week committed to a new generation of nuclear power stations.
A decision that could in the long term be the worst among all the bad decisions taken by this government. Or any British government.
And not just for those of us who live in the wind shadow of Sizewell.
Nuclear power may seem like a quick fix. It’s not. It’s a catastrophe waiting to happen.
By claiming that it’s "clean" and "relatively safe", energy secretary Ed Miliband begs more questions than he can ever answer.
Safe? For now, perhaps. The terrorist attack scenario is a giant red herring. The reactors at Sizewell, Bradwell and elsewhere should be safe enough against that prospect.
But what of a few decades down the line? A century or two? A millennium or two?
Can we build anything that will reliably keep lethal waste safe for that long - even without rising seas?
How safe will Sizewell be when the sea erodes away the cliff it’s built on – as it surely will?
How safe is "relatively safe"? Relative to what? Global warming? All-out nuclear war?
Miliband also said the government would support new coal-fired power stations, as long as they are fitted with a new "green" technology.
Sounds good. Trouble is, the technology for carbon capture and storage is unproven and prohibitively expensive. And there are serious doubts anyway about how "green" it really is.
So is it time to panic? To start preparing for a life of power cuts without end in a post-oil world?
There is a growing scientific consensus that suggests we could have all the power we could possibly want without burning anything – coal, gas, corn-oil or rainforest.
And it doesn’t even rely on developing technologies to harness the power of waves or the heat of the earth’s core.
Certainly not on the scientifically sexy but probably dead-end idea of nuclear fusion.
Both solar and wind power have the potential to deliver more power than even gas-guzzling America would know what to do with. And we already have the safe, clean, green technology to exploit them.
All we have to do to make it happen is tweak the world’s economy to reflect what is really worth doing and what isn’t. Rather than the advertising industry’s idea of what will make some rich people richer.
That, admittedly, is some tweak.