I mark my USB cables to indicate the size and orientation. I use a yellow dot for micro, and a red dot for mini connectors, on the top of the radio connector. That way, I know what size a connector is, and which way it goes. I use a 'paint pen' from the craft store. It's like a Magic Marker, but with oil-based paint; costs a couple of bucks, and you may find other uses for it once you have one or two.
I also use a white paint pen to mark all my adapters and cables. Besides marking plug orientations, I mark all my adapters with amp & voltage outputs, which device the adapter is for, and also for any other accessories that are specific to a certain device. Got to be where I had too many adapters/accessories where I couldn't tell which one was for which device and the print on them is smaller than my old eyes can see. Now I mark everything as soon as I open the package.
USB-C is only on one end of the cable to fit my Samsung phone..Standard USB is on the other end so computers don't need USB-CA connector found on every computer manufactured in the last 20 years and 1/4 the price while still offering reasonable performance is an even better choice. There's a lot of computers that don't have USB-C ports.