By InStyle Staff
Updated Mar 04, 2012 @ 2:00 pm
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Nikki Reed, Cameron Diaz
Credit: Ramey Photo; Getty Images; FilmMagic

These five key pieces (which may already be in your closet!) will speed up your decision-making and transform your look. Each is super-flattering—and perfect for casual moments and nights out too. Click through the gallery to see our favorite stars model them all!