I'd love to see something like USB become the standard for supplying power. It would work for pretty much everything except heavier appliances, and remove the n

I'd love to see something like USB become the standard for supplying power. It would work for pretty much everything except heavier appliances, and remove the need for most things to have their own adapter. It would be much more efficient, and as a Brit, kinder on the feet. And electrical saftey isn't what it was: a friend has an electric train set from the 30s which runs directly from the mains. A 60 watt lightbulb is wired up to the tracks to indicate when they're live, and the sparks and ozone smell when it's running is something to behold.