Apron Strings sent out a heartfelt plea to the universe at large and to me in particular for a map to guide her through the Slough of Despond (or, if you prefer to swipe your metaphors from children's board games rather than 17th century Christian allegories) the Molasses Swamp that is the who/whom distinction. Like, when are you supposed to use "who" and when are you supposed to use "whom?"
Now, I'm the first to admit that, while I have a perfectly adequate array of talents, grammar is, sadly, not among them. Nonetheless, I will share with you my time-tested, easy-to-apply, practically-never-fail who/whom rule. Ready? Cause here it is.
Unless you're absolutely, positively sure it's supposed to be "whom," you should always use "who."
Because if you use "who" when you really should be using "whom," you're incorrect.
But if you use "whom" when you really should be using "who," you're not only incorrect, but you also sound like a prissy grammar snob.* A prissy grammar snob who can't actually, y'know, use proper grammar.
hugs n kisses,
*Not that there's anything wrong with that.
Please feel free to add your own grammatical tips, tricks and pet peeves in the comments.