Several awesome tech and programming communities create advent calendars each year with a different article or demo for each day of December. Here are the ones I’m following.
I didn’t realize there was a separate app for this, but had wondered if there was a way to return to browser downloaded files. Within Downloads, I found over 65MB of files, some of which I downloaded over a year ago. With a few taps I cleaned them all out. These are treated separately and outside of the browser cache, so if you download a lot you should periodically clean them up.