A good way to stay to stay warm. Another good way to stay warm: hats. Suddenly a great variety of hats emerge at the Dutch streets (Russsian hats, 1930 hats, woolen hats, classy ones). I don't know where they come from, but people you look so good!
(snow effect: http://www.picnik.com/, I can't remember where I found it first, but it's realy fun)