The Inuit say the two most important survival items are a knife and a sewing kit. Well maintained clothing is essential in any clime. If we are crawling out of a crumpled aircraft, kayak or horse, chances are our clothing is a bit crumpled also. Buttons are drilled with a bit of sand as a grinding medium, the ballistic nylonrucksack mended and the seat covers sewn into snow gaitors. The stick we saved from the fire for a gaff hook needs a groove to help secure the hook shank along with that small nail. Meanwhile our Ka-Bars, Busse Brutes and T-Rex slayer knives stay nice and sharp for shaving fuzz sticks and rendering field mice.