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I have my fair share of ugly Christmas sweaters. Prior to my boys being born I worked in a children's hosp. In clinic we had to wear khaki pants and a polo shirt with the clinic logo (I was the only female in my dept - hence the polo shirt). There were no rules about my socks, shoes or sweaters so I made it a point to wear obnoxious holiday socks and sweaters - the more "bling" the better. The kids genuinly loved them and they made all the docs smile.