This trick will make your iPhone feel so much faster if it's been slowing down lately

Just a few days ago, a relative called me up to say that her once-powerful and speedy iPhone X was now crawling. Even relatively basic functions like checking email and web browsing were abnormally sluggish and, at times, would cause the device to freeze entirely. Before long, the culprit was clear: her iPhone X -- which came with 64GB of storage -- was essentially at full capacity. When an iPhone is running dangerously low on storage -- say, less than 1GB -- iOS sometimes needs to go into overd...