Since our devices have many functions we use them a lot in our room. So they need recharging. So we need to recharge them while we are using them. Outlets are not always in convenient places. The cables we brought are a bit short. Problem. I should have thought of this before we left and got longer ones.
Enter the metric system. USB to micro USB cables are a worldwide standard but their length is not. The replacement cable we got is about a foot longer than the one we brought. Problem solved. We got two.
I never thought before how the measurement system might affect things like typical cable lengths.
Another metric system thought. We have kilometers, kilograms and kilobytes and megabytes but you never hear about megameters or megagrams. They would be useful. The Camino is about 1.6 megameters. And almost all of us weight less than a tenth of a megagram, sounds pretty light to me.
And astronomers could use giga, peta, etc and get rid of these awkward units like A.U. and the easily misunderstood light year.