Crazy idea: now you can carry one cable.
Though I have to mention, you shouldn't really shop for cables when you're traveling and need a new one. First stop by the front desk, they usually have a huge pile of charging cables people have left behind.
And not all the offices are close to a shop selling those kind of things nor do these persons feel they might be better off going shopping for one directly instead of disrupting a non negligible amount of workers.
I don't even know why people have to charge their phone midday and can't wait. Even when I am going out and extending the night until dawn, I usually have battery left until I go to bed.