就是说：

As long as one does this, that, and much more beyond, s/he will be home free.

It sounds to me like: As long as I do everything I can think of, I will be home free.

Which is equivalent to saying: I'd never be home free (since I can never get everything taken care of).

也许是我看到的带上下文的例子还不够多，也许是你对这个短语的理解略有偏差，or both，感觉这才是不能统一认识的关键。