Now that the weather has turned colder you might want to go to this talk at the Museum from the curator of the Art of Arctic Clothing exhibition, Joanna Ostapkowicz. Apparently, double-layered caribou clothing protects to –40°C.
Pictured here is a tool called an Ulu.
Link
Its at 15.00 on Wednesdays November 16th and 30th 2005.