It's a relief to write the last word of the last sentence of the last paragraph of the last chapter of a book.
It's quite a relief to write the last word of the last sentence of the last paragraph of the last revision of a book after a grueling tech review.
It'll be quite a relief to deliver a final manuscript after editing the whole thing once more.
It'll be quite a relief to sign off on the last typo of the last proof check.
It'll be even nicer to see the book in print.
That's eleven days to the next major sigh of relief. At least this time, I know there are more.