
I would put the ability to make fire right behind water, shelter, and food in the list of most important things in a survival situation, and before food and shelter in some cases.
Since being able to start a fire is so important, are you really going to rely on only one or two ways to [...]

Water Filtration Systems have a set lifespan. After a while the filters just get worn out. You can use coffee filters to extend the life of your water filter.
Zack and I did a quick demonstration of this system in Mason jars to show how effective it can be. (Click for larger pictures)
Pre-filtering water through [...]