Excellent advice. A really interesting first hand account of something Americans have little first hand experience of. You have the realism and outlook to be a survivor

David's comment is also very pertinent right now. This is the window to get your shit together without going bananas about it.

I like mixed nuts for example. My breakfast is usually a handful of mixed nuts, a piece of fruit, and tea. I am stockpiling nuts right now, one can at a time, every-time I go to the store.

Because most of the world's nut supply comes from California. Where the drought is getting worse. There won't be nuts on the shelf next year except for peanuts. If the crop in the South doesn't get hammered.

I am also stocking up on tea. Because, it isn't grown in the US. The places it is grown are going to be very bad in a year or two. Tea is going to be hard to get.

I also got oatmeal. It's already harder to get on the shelves, by this Winter there may be very limited supplies. It keeps forever and it's versatile.

You don't have to build up a huge stockpile. But you should start doing it now.