Oh fashion, how fickle it can be! We were just talking about the disappearing neckline, and now every time we turn around someone amazing-looking is wearing a blouse buttoned up to the chin (think Linda Carter before she turned into Wonder Woman). This nine-to-five staple definitely got a dose of cool on the spring 2010 runways—designers layered them, belted them, adorned them with jewels, and gave this geek-chic trend a sophisticated edge. First socks with sandals, now this. Could posh pocket-protectors be the Next Big Thing to lust for?