Hair accessories can really make or break an outfit. Personally, I'm a big fan of a headband because my bangs are currently in that awkward "growing out" stage and they don't look good down. I love that gilded one from Anthro.
(I was laughing really hard as I was writing this because the way the models are facing reminded me of the Brady Bunch opening scene. It was not intentional.)
(Ban.do twist scarves, Anthropologie headband, Kate Spade cloche, ASOS bow)