via https://www.npr.org/2026/04/22/nx-s1-5793799/knitting-enthusiasts-from-around-the-country-recently-met-for-yarn-fest

A 9 x 5" card that folds in three to make a 3 x 5" card for planning out one's entire week.

This is quite clever with respect the space of cards like Analog and 3x5 Life.

Just like the imagery from the Analog System's promotion, this video features someone fed up with lots of notebooks pushing them off their desk in frustration—naturally to turn to index cards.

timestamp: 0:00:25

https://www.3x5life.com/

Compare with other products in this category: - Analog (Jeff Sheldon productivity system) - Memindex - Bullet Journal - Frictionless Capture Cards - Pile of Index Cards

reply to u/jordynfly at https://www.reddit.com/r/Zettelkasten/comments/13b0b5c/how_big_is_your_zettelkasten/

The idea of notes per day comes up occasionally, here's some discussion on the last go-round: https://www.reddit.com/r/Zettelkasten/comments/11z08fq/comment/jdbnchv/?utm_source=reddit&utm_medium=web2x&context=3

Many people, especially when getting started, get wrapped up in the idea of doing this for "increased productivity" or the goal of being as prolific as Niklas Luhmann. I would submit (and think others would back me up anecdotally) that there's far more to the practice than raw (or measurable) productivity as the single, driving value. Perhaps approach it as a way to sharpen and improve your thinking instead? If you're seeing life-like behavior already, that's a good sign of appreciating some of the hidden benefits which are difficult to describe and which are likely more valuable than the "productivity" goals many may have.

I've noted before that S.D. Goitein had 1/3 less index cards than Luhmann over an equivalent research lifetime, but produced a 1/3 more written output (in terms of books and journal articles). Others like Aby Warburg and Gotthard Deutsch (70,000 notes) had significant practices, but their writing output was marginal at best, though their impact and influence were outsized, in part, I would suggest as a result of their zettelkasten work.

Others like Roland Barthes (generally low card output of \~12,500) and Deutsch also used their fichier boîte/card index/zettelkasten as teaching tools, so while their written outputs may have varied considerably, their teaching practices were incredibly influential for the students and generations they encountered afterwards.

This being said, I'll share my current easily countable lower bound dating roughly from 2016 as:

• 15,200 notes
• 32,000+ links
• 2.1M words

(Having a zk in digital form makes it reasonably easy to do these sorts of counts versus analog methods of note making.)

Some additional pathways to learning and practicing, including my own, can be found here: https://www.reddit.com/r/Zettelkasten/comments/11ay28d/how_did_you_teach_yourself_zettelkasten/

I'll push back on this a bit. I suspect that even though one might create multiple links to digital notes in all directions like this, it really doesn't happen happen at scale like this in practice.

I'd be willing to guess that very few people in the digital space are linking their ideas to more than two or three others. In fact, I suspect that if you looked at many digital ZKs you'd find a lot of orphaned notes floating around.

Separately, even in the analog space, the two links (down or forward) isn't always correct either. I cross link all over the place. The one constant benefit of the analog is that you're generally required to create at least one link because you have to place the card somewhere, and this isn't the case in most digital contexts/tools.

I'd posit that it's a lot of work to link a new idea into your system once much less in multiple places. Generally the more ideas you can link/cross-link it to, the more likely you'll run across it in the future and have potential to reuse it. I'd also suggest that the more links it's got, the better you'll "own" it. These addition links will also allow you to better compare/contrast various ideas by juxtaposing them in the future.

Theorem: more (good/great) links = more complexity which yields more "life", serendipity, and surprise to be found in your slip box for future use.