Im going to have to go with the spray on waterproofing. Learned that in my first year of the army in germany. tried waterproofing my jungle boots. not. spray on silicone is just about worthless.
Now I know im going to take a lashing for this but, surefire flashlights for non tactical situations. a waste of money. for the money you spend on the novelty of '65 lumens in just 4 inches of flashlight' you could have gotten a maglight, and extra batteries. Ive never ever had a maglight fail, and theyre durable as heck. sure, theyre quite a bit longer, and heavier, but i dont mind, as their batteries give me about the same lumen, for 8 TRILLION times longer than any surefire flashlight could ever dream of giving me. they dont overheat themselves, you wont readily lose one, and they double as a beatdown rod in a pinch. plus their beam is adjustable. and you can find their batteries ANYwhere. and each battery doesnt cost SIX BUCKS either. I have two surefires, but theyre for tactical, quick use scenarios. not long term light, as in for camping or hiking.
the little wire saws? they dont work, cuz theyre not camping saws. theyre last ditch saws. for down pilots, or ground personnel escaping and evading in enemy occupied territory.
the little mylar blankets tear.. cuz youre using them for which they werent intended. as a tarp. theyre blankets. you wrap one around yourself in a last ditch effort. theyre not sleeping bags.
My 'i thought it would work...in theory' was using gas as a firestarter, for when you can only find wet branches. I tried using it a long time ago when starting a fire after it snowed to no avail. nothing i did could get those soaked branches lit. so I learned my lesson there.