We are sitting in the gate at London City Airport waiting for an early morning flight. Next to every seat in the waiting area is a bank of power outlets that look like this:
You will notice that there is one UK standard outlet and four USB outlets.
And, no matter where in the world you are from, it is likely that you have a USB cable for your phone.
I am charging my phone while I write this and I don’t have a UK power adapter on me.
That’s the power of a standard like USB which is only getting better and better over time.
I wonder if someday we won’t even have to deal with all of this: