iPhone Other and System Data storage: What is it and how do you get rid of it?

I’m sure this sounds familiar: You’re trying to install the latest iOS release, upgrade to a new iPhone, or just download that cool app everyone’s talking about, and your iPhone says the storage is full.You’ve already deleted every app you don’t think you need, and there’s still not enough space on your iPhone. So you open Settings, tap General, then iPhone Storage, and, sure enough, your iPhone is full. Worst of all, a huge chunk of it is just listed as