Want to know how to amp up your day-to-night style? Look no further than British actress Gemma Arterton, who nailed it in her trusty satin trench. Take a tip from Gem and layer a luxe metallic jacket over rolled-up jeans and loafers (no socks, and keep the jeans ankle-length), for the ultimate casual-meets-glam combo. Gem accessorized her look with a gorge Gucci tote (loving the bamboo handles), but if that's not in your price range (sigh...), then a tan leather bag will have the same effect. Complete the look with fresh-faced dewy make-up, et voilà! Day-to-night chic, done.     

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