If you have a research paper due in the next couple of weeks and really hate doing citations, check out Zotero, an open-source citation manager. Zotero will help you store bibliographic information and pdfs, and will also format your citations and bibliography while you work in Microsoft Word. The Olson Library page on Zotero is here.
If you already feel as if your brain is too full to handle learning another piece of software, Microsoft Word will save bibliographic information, format citations, and create bibliographies. The Olson Library’s instructions for using Microsoft Word are here.