I have a sentimental attachment to file cabinets. They store memories and rummaging around in them can actually lead to excellent research findings. When you type search terms into a search index of some sort, the machine carefully send you what you’ve asked for, but a fuzzier search, the sort that happens when you start to leaf through physical folders, can turn up all sorts of stuff you didn’t think to look for initially. Also file cabinets can help with…