There are three things you need to manage so that your Supply Chain can deliver. Giving you what you want, when you want it and at the right quantity:
Information
Time
Stock
This allows you to understand the actual situation. Plan and manage your requirements proactively and timely. Keeping the right stock to maximise efficiency and protect against shortages.
Use these three key areas to manage your personal sustainable self sufficient Supply Chain to have the following key items to survive, prosper and sustain:
Water
Food
Shelter
Energy
Heating
Ability to exchange : products or money
Always keep control of your value flow:
no debt, cash in hand, products, stock, precious metals
costs kept low and limit non essentials
avoid waste
efficiency of your time & energy
Keep in mind the following aspects so that you optimise:
Local produce, suppliers, shops
Seasonal foods to reduce costs, self sufficient
Like minded people to exchange ideas and products with, friendship and support.
Health - prevention rather than cure, fitness from doing, grounding, fresh air, natural remedies and immunity.