An off-grid solar (photo-voltaic) electric power system is an ideal prep for modern survival in that it can partially or totally relinquish you from dependence upon other systems, which themselves are vulnerable to disruption or breakdown.
Brilliant Idea! - Infographics Thread for SHTF & Helpful Tips for Everyday Life | Survival Discussion Forum | The Outdoors Trader
Deterring a Burglar- The Story of our Home Robbery | Boogies N BooBoos
LifeStraw - Drink All The Dirty Water! Interesting item to look into for bug out bag.