My friends, I present to you: The Clutch laptop bag.
OK, so the Boyy Gus bag is more like a laptop sleeve, but look at it. I'd carry that baby in to work or to the coffee shop, and then at night, take out my laptop and fill the bag with my going-out essentials. Its double-duty aspect almost justifies the $385 price tag (I said almost!), but considering that it's not made for a specific laptop size, it might be a classic item. Just look at that Italian leather and that top zipper. Resistance is futile.