I talked to the wife the other day and told her that i was thinking about puting up a year supply of food so we can be prepared for what every happens. She told me that she liked it and we will start right away.
Congratulations on your decision... more congratulations on your partner being on board. It is always easier if both of you are in harness and pulling in the same direction.
One thing to keep in mind is having a plan. If you try to do everything at once it will become overwhelming and very costly. Do some research on this site, (lots of good info here), and plan out in stages. First make sure you have supplies for 72 hours... then for two weeks... then a month and work at it to get toward multiple months.
Be sure you have a rotation plan for your canned goods. Put by those things you would normally eat, (it does no good to have 5,000 cans of okra if you hate okra). Remember that if you can't use it or won;t use it, no matter how cheap something is, it's no deal.
Learn to grow vegetables and learn how to preserve them, (canning, dehydrating, pickling). There will come a time when the local Piggly-Wiggly has empty shelves.
If you live in an area where it's allowed, learn to raise some chickens, (rabbits are easy, but if that's your only protein source, you will starve to death). Once you learn to raise chickens, learn to butcher chickens, (yeah, it's tough to take the life of another living thing... but the simple truth is that meat does not naturally grow on little styrofoam trays in the super market).
Learn or relearn some of the skills that our grandparents took for granted as a normal part of life. Learn to repair clothing by sewing, darning and knitting... learn to repair your own shoes... learn to use, maintain and repair hand tools.
Most importantly, do SOMETHING towards becoming self-sufficient every day. It doesn't have to be a big deal. Just learn one thing. You will be surprised how quickly the knowledge and skills pile up. And speaking of skills, just because you read something in a book and understand what you read doesn't mean you know how to do that thing. Reading and understanding how to make fire with flint and steel doesn't mean you CAN make fire with flint and steel. Reading and understanding how to hunt, kill and butcher a deer doesn't make you a hunter or butcher. Practice, practice, practice... it is what turns a novice nimrod into a master of preparation.
Welcome to the journey... enjoy the ride. (... and please keep your hands and arms inside the car while the ride is in motion!)