The Shockwave Torch is a completely functional weapon to counterattack sudden assailants. You need not kill the attacker; it is only for personal defense. You do not need a license to have this torch while you need to have one for using a gun.
The Backyard Miracle Farm system is a cost-effective measure to reduce your expenses and to get the produce even in case of emergencies. With no maintenance and low investment, the system is worth the try.
If you need to live off-the-grid for a while, this Survival Sanctuary is quite handy. You can generate your own food, and you can store it for extended periods of time.