My son had to admit that Washi could be useful:

The black diagonal Washi from the Epic Day This n That suite was the only one he considered acceptable, but he agreed that identifying his cables made sense.

He has a LOT of cables.  Apple cables.

The ocean attacked his phone the day before he was supposed to fly back to campus.  Good thing he worked that extra week, because he wasn’t planning on a new phone.  Naughty ocean.