Our local libraries, The Seattle Public Library and the King County Library System, issue pieces of plastic with barcodes printed on the back assigned to your borrower account. These cards are not strictly necessary in 2023; most everything at Seattle libraries is self-service, including circulation, and these self-service entrypoints usually have a way to type in a library barcode manually. But having the barcode is far more convenient, and I’d like to have it without having to keep yet an...