Jaymi Heimbuch puts together an industrial-strength survival pack, the sort you might need to survive a Haiti-style disaster. There are plenty of good resource links here, plus lots of chatter in the comments. Heimbuch’s main complaint? This first aid, survival kit tips the scales at 30 lbs. (Hint, go with LED flashlights and lose the D cell batteries.)
If you want to travel lighter, or in be prepared in case you get separated from your backpack, search and rescue specialist Michael Neiger lists the essential survival tools you should carry in your pocket.
Photo by Ken Bruker