I have about 200 scenes in this cartoon (the exact number can change because I sometimes combine two or more scenes into one for better flow), with about 17 in varying stages of production.
I have separate folders for each scene, which I make as I work on them. I would use this to keep track of the status. Most are in animatic stage, but some shots are fully done.
Maybe this isn't that interesting for a lot of you, but I figure I'd showcase where I am right now.