Add a Headband
If your bun feels blah, jazz it up. Chunky, embellished bands like the ones at the Dolce & Gabbana fall show look right with low buns. Simple, skinny versions are cute with high knots. For a modern look, choose one that's sleek (no more than 1 to 2 inches wide) and position it about an inch behind your hairline.
band.do crystal head wrap, $165; shopbando.com