Comment by rhinoceraptor

If your inkjet printer has the right tray, you can buy printable CD-Rs for about 25 cents a piece in bulk. And somewhat unrelated, I've also been printing out a lot more of the photos I take.

I got a Canon PRO-100 printer for $25 off of Facebook marketplace, they practically gave them away with higher end DSLRs so they're easy to get second hand, and a set of generic ink cartridges is about $15. With generic ink and generic photo paper, you can do a 13x19 prints for about 50 cents each. It's not archival grade printing, but it's pretty good and affordable.