If you're going somewhere fancy for Valentine's Day, then try this sleek chignon seen on Zoe Saldana. Although you probably don't have a Lorraine Schwartz barrette lying around, the style still makes for a glamorous date look.
To re-create this look, flat-iron the hair straight, and gather it into a midheight ponytail. Wrap the ends around into a bun, and secure with bobby pins. Tame any flyaways using a toothbrush spritzed with L'Oréal Paris Advanced Hairstyle Lock It Weather Control Hairspray ($5).