Reaching "The End"

I've got another reader request writing topic: How do you finish a book? I'll address this one from two different angles -- getting to the end and then creating a satisfying ending. This time, I'll talk about getting to the end.

Eventually, at some point, in order to be a published author, you have to finish a book. There are some cases of authors who have sold their first books on proposal -- with just an idea or maybe the first few chapters -- but these cases are very rare, and what you don't u