Because I am preparing this paper from PLOS ONE, with its stupid numbered-references system, I am finally getting to grips with a reference-management system. Specifically, Zotero, which is both free and open source, which means it can’t be taken over by Elsevier. As a complete Zotero n00b, I’ve run into a few issues that more experienced users will no doubt find laughable. Here are two of them.