Most brides pack their wedding dresses away to collect dust in their closets. Not Keira Knightley. The actress stepped out at a gala this week in London in the same custom pink Chanel gown she tied the knot in back in May. (In fact, she actually debuted the dress on a red carpet a few years before she made it official with her rocker hubby James Righton.) Call her thrifty, call her untraditional—but we call her brilliant! Why in the world would you let a perfectly good Karl Lagerfeld creation be infiltrated with mothball scent instead of Chanel No. 5?