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In the United States, Emily Posts Etiquette says simply that women should wear a formal evening gown while Letitia Baldriges New Manners for New Times recommends a full-skirted ballgown, lots of jewelry but never too much, fur wrap, long white gloves. Debretts, the UKs most definitive source of social protocol, says in its New Guide to Etiquette and Modern Manners that Women wear long, formal evening dresses

Break out your giant spiders, black garlands, and that 12-foot skeleton youve been itching to use for more than just one month

J.Crew always nails the breezy polished vacation look, and the newest dresses are the sweet finishing touch on their sunny collection

Credit: ALFONSO CATALANO/Shutterstock Eva Longoria The Desperate Housewives star looked dainty in a sheer black dress by Alberta Ferretti