The hottest spring fragrances and when to wear them One fragrance is never enough. These days, we're all about the perfume library. Wade through the latest launches and learn where and when to sport each scent. By Andrea Karr Slide: 1 of 8 auto-play pause next first speed Cocktail hour The fragrance: Guerlain Aqua Allegoria Limon Verde Eau de Toilette, 100 mL, $67, at Guerlain counters in March 2014. Wear it: For after-work cocktails with friends Drink: The national cocktail of Brazil—a caipirinha—of course. This lime-and-cachaça (sugar cane liquor) drink inspired the scent and colour of Guerlain’s latest launch. Listen to: The playful strums of a ukulele or mandolin Notes: Lemon, orange, caipirinha, tonka bean Looking for your one perfect scent? Click here.