zettelkasten accessories

Not surprisingly, I don’t always file away my index cards as quickly as I probably ought to. Every now and then I go through my deck of unfiled cards and try to sort them into my card index/zettelkasten. The end of the year seems like a pretty good time to clear the decks.

Because I haven’t documented some of this portion of my process before, I thought I’d take a few photos of my C-Line document sorter which I use to do a fast sort of cards before filing into my card index. I bought it a while back from Brodart Library supplies and it comes in quite handy for sorting and filing documents. It’s got sections for sorting by alphabet, days of a month, months of the year, days of the week, and numbers up to 30,000 (which I primarily co-opt for Dewey Decimal sorting). The days of the month and month sections come in handy for use with my Memindex work, and the months of the year are useful for sorting receipts for expenses and at tax preparation time. In all, it’s fairly flexible analog office tool.

As I go through my stack of index cards, I use a Mitsubishi No. 772 pencil (the vermillion side) to underline topics for filing and cross-referencing purposes. This allows me to cross-index topics quickly as well.

I went through several hundred cards the other day and only had about 150-200 left for filing into the commonplace book section of my card index. Most of these cards were from 2025, but some dated into 2024 with a handful from as far back as 2023.

Over the coming days, I’m hoping to finish cleaning up some of the notes from this year’s reading work.

Acquired Lochby Field Folio A6 (Lochby)

Keep your A6 notebooks, pens, and essentials organized on the go with the Field Folio A6. Durable, vegan waxed canvas, slim design, and flexible pockets—perfect for travel, journaling, or everyday carry.

Lochby Field Folio A6 sits closed on a brown wooden table with it's Lochby kraft identification tag sitting on top of it. The exterior of the folio features brown waxed canvas.

I recently asked the kind folks at Lochby “if the Folio A6 will comfortably fit 25-50 standard 4 x 6″ index cards which are slightly larger than an A6 notebook? If not, is it something you might consider for some of us ‘Hipster PDA’ tribe members in the future?”

Erring on the side of caution their customer service replied, “Unfortunately, since the Field Folio A6 zips up, there’s no way to fit this many index cards in it without the potential for damaging them when zipping it up. But I’ll take note of your suggestion and pass it on to our product development team so we can consider it as well as gauge interest.”

Because I often use A6 sized notebooks, I couldn’t resist adding to my Lochby collection, so I went ahead and ordered it anyway.

It arrived in the post yesterday. Today I’m happy to report that it actually will accommodate 4 x 6″ index cards reasonably well. I can comfortably fit about 30 cards into the right side pocket and still have room to tuck a Hobonichi A6 notebook into the folio and still zip it shut handily.

Because I usually have a few pre-glued decks of index card “notebooks” sitting around, I tried one of these and can happily report that the back cover/board fits into the right pocket easily (just as you’d tuck the back cover of a notebook into it) and works well with the Lochby A6 folio! (The center elastic bands are slightly smaller and fairly tight, and could work with these glued decks too, but will tend to cut the glue at the ends, so one should take care here or carefully only glue the center 5 inches of the deck for this use case.) I suspect that if one had a plastic wallet-photo type holder, it might work well in this, particularly if you’re carrying around some of your daily use cards in addition to blank cards for future use.