I'm bringing my black trench coat, but I also got one of these fabulous long, open draped sweaters which are so popular now and versatile. I plan to wear this over a dress or with a sleeveless shell during the day, when the temps in Paris should be hovering around 69 F (according to the weather chart averages for the city).
I also bought a sweater like this ... in teal.
It's hard to avoid ruffles at the department stores these days - they're EVERYWHERE! It think this may be the only ruffled thing I bring.