Everyone else will go the obvious route in denim, so pick a bandana-print dress instead. Then accessorize with things you can work into Isabel Marant-y outfits later on, like turquoise jewelry and a simple concho belt.
belted skater dress in bandana print, $69.08, band of gypsies, asos.com; silver and turquoise rings, $27.27, river island, asos.com; concho-buckle carved belt, $250, ralph lauren, bergdorfgoodman.com
'70s / Disco
Sparkly disco ball-ish dresses and psychedelic colors will be everywhere, so stand out in a black jumpsuit and an oversize pendant instead. The clingy fabric and plunging neckline are sexier than a minidress anyway.