Jeff Kravitz/FilmMagic
Greece: Sun and Sand Defense
Before hitting the beach, Greek women use olive oil to slick their hair into a tight ponytail. "This protects strands against dehydration from the sun and salt water," says Athens hair pro Ilias Zarbalis. Take a cue from Greek actress Maria Menounos, who wears her ponytail sleek with a mini-pompadour.