YouTube audio
There are so many really interesting and informative YouTube videos but I don’t always have the time or patience to sit and watch them. Unless there is some sort of visual demonstration or diagram involved, especially if the content is simply a talking head or a discussion, I have no need for the video.
Fortunately the paid version of the podcast app Castro has a share sheet extension for iOS that at the click of a button strips the audio out of YouTube and adds it to what it calls a Sideload playlist. I can then listen as I drive or walk around and this has massively increased my ability to learn.