Layering is the key to keeping warm in winter! Winter is here and we are rugging up~ Our daughter was born in late autumn. Having lived in the subtropical climate all our life, we had no idea how to dress our baby for the Philadelphian winter. Throughout her infancy, we were constantly concerned that she might be cold. After two years of practice, I developed a winter clothing strategy to suit our comfort level (see table above). When dressing our child for warmth, we layer clothing of different warmth level to achieve an overall target value that suit the outside temperature. This minimised the guesswork of getting dressed and allowed…