Photo: Claire Benoist

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Collect Pieces That Do Double Duty
Look for accessories that go from day to night, like a purse upgraded with a sparkly pin.

Bag, $185, and brooches, $70 each;

Beauty Note
Try some multitasking makeup, too. A creamy formula that can be used for eyes, lips and cheeks, such as Nars The Multiple, saves money and space in your cosmetics bag.

From top: Nars The Multiple in Puerto Vallarta, Undress Me, Na Pali Coast, Orgasm, and G-Spot, $39 each;