Homemade Porta Potty--ingenious idea for people who camp and just don't like to use a hole in the ground.
Build a Rocket Stove- One of the best and most efficient ways to cook in an emergency!
Life in the Hundred Acre Woods: How to make a Rice Bag Heating Pad TUTORIAL - out of a $1 towel
Tactical Walls - Rifle length shelf - folds up! Could also be used for something other than guns.
DIY Tin Can Grill - Top 33 Most Creative Camping DIY Projects and Clever Ideas
97 Easy Ways to Save Money - long list of ideas, including ways to cut on the food bill, utilities & non-essentials.