Collar-like necklaces, like this pearl-and-chain number from ASOS, are still hot stuff. Who doesn't love a quickie solution for changing up that same shirt you've sported more times than you care to admit? Another perk is that it looks just as awesome when worn with a collared shirt or sweater (hello, boring winter wardrobe!) as it does with a sleeveless tank or T-shirt. In short, you simply must own one, and with this goodie priced at just over $20, you can.
ASOS Pearl & Chain Collar Necklace, $21.05, available at ASOS.