Taking positive action can be very empowering. It only takes a few dollars to get started. The most important thing is to start.

Phase 1
Dried beans, rice, lentils are a good start. Buy a few bags each week.
The Berkey Sport water filter is $24 on Amazon.com.
Make a Hobo stove to boil water for cooking dehydrated food.
Purchase a variety of seasoning to avoid food fatigue.
Purchase a few cans of soup, canned chicken, etc. from your local supermarket each visit.
Have a water plan.  If you don’t have water, you must relocate or die.  For some people this may only be 3 days.

Phase 2
Purchase a food dehydrator, use your oven or make a solar dehydrator.  At your local supermarket, purchase sweet potatoes and your favorite frozen vegetables, one bag at a time.  Chop into small pieces and dehydrate at 125 degrees F or lower.  Food cannot be over dryed.  If food is  dehydrated at temperatures higher than 125 degrees F there is risk of case hardening, where the outside surface dries too quickly, trapping moisture inside the food.  After dehydration store food in quart jars, a Mason jar ($1) or P.E.T.E. jar ($3).   Jerky requires a higher temperature and a different procedure.  P.E.T.E jars are plastic, don’t break easily and are great for a bug out and rough roads.

Evacuate oxygen from the jar.  The least expensive way to do this is to prepare the jar lid as described by the Pump-N-Seal video. If the Pump-N-Seal pump at $32 is too expensive at the moment, purchase a ZipLock bag vacuum pump for $5 at your local supermarket.  If the Pump-N-Seal tab cheks (used to cover a pin hole in the jar lid) are too expensive, make your own using vinyl electric tape and thin pieces of plastic grocery bags from the supermarket.  Judy of the Woods shows you how to do it.  The thin plastic material of the tab chek is forced into the lid pin hole by the difference in air pressure on either side of the jar lid, forming an air tight seal.

Tammy at Dehydrate2Store has excellent and FREE instructional videos on Youtube related to preparing and cooking dehydrated food.

If you have food and a limited water supply, you will need a sawdust toilet that you can build yourself.  More about composting toilets.

Depression era cooking with lovely 96 year old Clara.  Clara will surely charm you with her informative and delightful videos.

Phase 3 (if finances improve)
Purchase dehydrated food from East Coast Food Storage, Emergency Essentials, Honeyville, or one of the many other online suppliers.
Upgrade to a larger food dehydrator.
Upgrade to a higher capacity water filter.