Perfect, I'm sticking to my guns with that one. And yes, I do have a date. Yes, she will be wearing a gown. And no, I do not have a tux, nor do I want to rent one on such short notice. I'm going to have to start looking to purchase one, but in the meantime, I'm just trying to look my best so people don't think she's totally out of my league tomorrow.
But let's be honest, a 5'7" blonde haired blue eyed thin girl is going to grab all the attention anyway. I could probably show up in underwear.
I'd reiterate ridethecliche's advice above: a crisp white pocket square (linen or cotton, not silk) would really cap off the outfit. If you don't have one, I think even a plain handkerchief from Jos Bank would look better than nothing. Kent Wang's twenty-buck special has done right by me.