🗃️ I just did a quick calculation and I’ve purchased 2 large card index cabinets, and 5 small indexes (which includes some small desktop trays and a 2 drawer wooden index) for a total of $636.52. It gives me about 65 linear feet of index card space which should hold approximately 108,000 index cards. In physical storage cost (just for the cabinet, not for the square footage), it comes out to spending about 6/10 of a cent per card. 

Buying cards in bulk groups of a 1,000 for the going rate of about 2 cents each, I’m looking at a lifetime index card bill of around $1,700 to fill it all up.

If I look at a 30 year time span, I’m all in for about $2,500 (I’m adding a bit for pens/pencils/ink) versus an annual subscription to Roam Research (currently $165/year) or for Evernote (currently $170/year) both of which would put me at about $5,000 (presuming either is around in 30 years.) 

I really ought to be set for a while, but I do have my eye on one or two other stunning pieces….

The good news is that I’ve traded my expensive notebook/journal habit for a somewhat less expensive card index habit. Now I can spend the difference on more books and fountain pens. 😁