Or filtering and searching. Anything you can have a large number of should have an obvious filtering & searching UI. After how many decades of UI are we still so behind on basic usability design.

If you don't limit yourself to only the closing one part of management, you might see the reason behind the craze

And if you'd like to read it later, bookmark it! You can organize bookmarks into groups, give them custom names, and they don't require the browser to be constantly hoarding multiple gigabytes of RAM.