A Classifier Agent Based on the Johnny.Decimal Method
I constantly have trouble saving things I need.
For example, I just registered for a conference and received a QR code. If I put it somewhere, I will definitely forget where I put it within a week.
Classification principles do not work well because the classes keep changing on their own. New ones appear, while old ones are removed or merged.
As for interesting things, links, images, and documents saved "for later," there are too many to count. I cannot remember a single time when they came in handy at the right moment.
Agents should help with this. For example, there could be a classifier agent that maintains a classification method such as https://johnnydecimal.com and sorts the entire stream of junk into folders. Of course, it remembers what it put where. Then I could ask it things like, "Give me the conference ticket," or, "We saved something about finding flows in graphs. Remind me."
This is somewhat similar to the ideas I built into smith.wiki, except that this is about private data. I could try to combine these ideas into one, so the same approach would work for both the public things that interest me and the private things I want to save for later.