... you often save references while researching, then review and download the full text later.
... you use sources in a variety of formats, including video, audio, art, etc.
... you keep formatted notes, i.e., they contain bold or italic text, superscripts, bulleted lists, and/or you like to keep multiple notes.
... you like using tools that are customizable and configurable.
Step 1: Install Zotero (stand-alone)
Step 2: Register at zotero.org to allow syncing among multiple computers.
Step 3: Customize using Preferences