Giant Killing Lists

After seeing several of these topics on the blogs and forums, I feel the need to put my own list down, so that if I see another ambiguous request like the question above, I can just link to this and ...

Took a while, but I feel confident in saying that this is every single anime I've ever seen to completion or long running series that I've seen all of and still watch on a regular basis. Everything before Kemono no ...

Things I've seen or read that I should try to edit the pages for.