my advice after being in 2 wars:
1) get a water purifier...forget food and shit you will miss drinking water the most
2) buy lots of tobacco...you can barter it for food...it keeps well and you wont get murdered for it but if they know you have food you will...tobacco addicts will sell their soul for a smoke in times of crisis but will not group up and murder you for it...
3) forget gold...nobody will trade food for worthless metal...forget money...it will devalue too fast in times of emergency...
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