Knots can be very useful. They can be used for boating, construction, and various DIY projects. This video covers seven essential knots.
Swedish fire log - burns for hours and it looks beautiful.
How to build a Campfire | http://www.diyideasbyyou.com/how-to-build-a-campfire/
40 Essential Knots Every Survivalist Needs to Know | How To Tie Knots For Fishing, Hiking, Camping, see more at http://survivallife.com/2016/01/04/40-essential-knots/