One things for sure, one's safer "in numbers" then being a lone wolf. Networking with others is the smartest way. And everyone has skills they can contribute. Even in the smallest ways.
It wouldn't be a bad idea now (B4 TSHTF) that one take a college night school course in CPR, first aid, etc. Whatever will help when the normal avenues are no longer available after the TEOTWAWKI sit occurs.
