I'd actually push back a little on the "just learn it once" framing - the real issue is whether you'll stick with it. I started with Zotero for a project and honestly found the initial setup more annoying than the person above described, partly because getting your sources *into* the tool cleanly takes effort upfront. That said, if you're already losing track of citations across three papers, manually doing MLA is going to be way worse down the road. The tools genuinely shine when you're mid-paper and need to add a source quickly without hunting through your notes. My honest take: try one for just your first paper and see if the workflow clicks for you. If it doesn't after a solid attempt, you've only lost time on one assignment, not all three.