On IOS.

Youtube music vids tend to stop playing when you press your smartphone’s lock button, but there is a way around it. Open Safari, go to youtube.com, play anything you fancy and then press the Home button. Now slide up Control Center, hit play, and tunes will commence.

QWatching a modern-day caveman building mud huts might not sound like the biggest thrill for tech fans, but this channel is a great example of how to tell stories without speech and a brilliant way to unwind before nodding off into your dreams.