Who would have thought the mystery girl of the infamous sixties song Itsy Bitsy Teeny Weeny Yellow Polka Dot Bikini (refresh your memory here!) would become a style icon? The uber-cute polka dot trend is not just for nails – browse Tumblr for endless, enviable spotty manicures – the classic print is a must-have for your Winter wardrobe. Polka dots perk up an outfit instantly; their retro vibe adds a whimsical edge to any occasion. They are an easy way to break out of your comfort zone, being that teeny bit quirkier, yet playing nicely with everything in your closet. Dots can spark up an everyday look – demonstrated by…