I can tolerate extreme cold but what do I need to know before I head out today in the cold. I know about the ziplock baggies to seal them up when I get in the house. I have a small Lowepro Camera knapsack and I am only bringing the minimal amount for now. Anything I would need to know? I will be out for several hours. Any suggestions would be great. I am looking for a larger bag but until I figure out what other lens I am buying I will be putting it of. So you cold living people can you suggest anything so my camera equipment is safe, or is it just fine in the case. Low -13 high -6 all Celsius.