I made one of these bad boys too!

[lewang]

Here: https://github.com/lewang/ws-butler

My minor-mode trims any lines you modify regardless of the file's initial cleanliness. It's less obstrusive than ws-trim, as trimming happens at file save time not while you edit.

Maybe you check it out and add a line in your README?

[glasserc]

This is cool. I'm gonna have to check this out very soon. For now, I added a note.