Grammar Girl: "So" and "so that" aren't always the same

Word nerds, rejoice: Grammar Girl is going deep into the weeds.

An English teacher had sought Mignon Fogarty’s expertise on explaining when “so” is a coordinating conjunction and when it’s really “so that” in disguise.

And boy, did she deliver — with three-page breakdown of the issue, including what it means in practical use (for those of you who just need the bottom line).