I'm not one of those obsessive types that tries to get 100% in every game I play. However, I would eventually like to get 100% in GTA: Vice City because it's one of my favorite games. The problem is I've stretched out that quest over several years. I won't touch it for a few months then suddenly get the urge to pick it up again. By then I've completely forgotten what I have and haven't done. So I put together a handy checklist of everything required to hit the 100% mark. It's in spreadsheet form with separate pages for the hidden packages, unique jumps, rampages, missions, and so on. I made it publicly readable in case anyone else finds it to be a useful format for tracking all this stuff.
Just click "File -> Download as" to get an editable copy. If you want to import it into your own Google Documents then download it as an Excel file because that imports cleanly.