One of the oldest fashion tricks in the book: Wear a hat! From floppy straw hats (see Isabel Lucas, above left) to cool fedoras (Rachel Bilson) and on-trend panama hats (Rosie Huntington-Whiteley), the right chapeau can instantly update your look and it doesn't have to cost a fortune.
Here, five summery hats under $30.
Here, five summery hats under $30.