Photo: Devon Jarvis and Kevin Sweeney/Studio D.

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Genius Ideas
1. The foolproof terry sarong: No tying, no tucking–just throw it on, button it, and go.

2. Apply this powder to skin and say goodbye to sand.
Sand Remover, $17;

3. Add volume or enhance cleavage with inserts that can be worn in or out of the water.
$20 to $22;

4. This SPF 50 sunscreen is oil-free and antioxidant-rich, with a natural citrus scent.