First notebook entry: Introducing myself

After all

Anyway; in spite of what had been decided. (Often refers to a change in plans or a reversal of plans)
Remember; consider the fact that...

It's even simpler than that. After all = in spite of everything that has happened.

Elena had planned to go to the bank first, but she came here after all.
It looks like Esperanza Aguirre will go to the nightclub after all.
Don't punish her!!!. After all, she's been building things that we can't not afford. You have a double-negative here, so what do you really mean?  If I read your sentence directly, you are really saying that she deserves to be punished.
After all!!, we didn't really hurt anyone! Control the punctuation.
http://xochipillienglish.blogspot.com.es/2012/04/idiom-with-meaning-letra-after-all.html