The white button-down shirt. It’s the most classic of pieces, the most basic of wardrobe staples. And while most will argue that it needs no further accessorizing—just a pretty clavicle and maybe a glowing tan—I think every basic can sometimes use a bit of a oomph. (Note: The hordes of women now throwing on glitzy costume necklaces over a buttoned-to-the-neck shirt.) How I’ll be updating the button-down this fall? With a frothy silk bow at the neck, preferably this Saint Laurent blush-colored, silk-chiffon collar. Tuck it under the collar for instant cool, or use it to upgrade the neckline of a plain LBD. That glowing clavicle? Save it for summer.