Saving on groceries in the face of tariffs and shortages?

What are everyone's best tips for saving on food? I know that panic buying has already started by me (US-based). These are some that I use:

1. Shopping at Aldi. Their prices are really good for house-brand items. Wal-Mart, although I don't love it, can also be a good source for cheaper staples.

2. Beans, rice and lentils. They are cheap, shelf-stable, and I can add in things like frozen vegetables, Spam, seasonings to make them a meal in a pinch.

3. Ramen. Again, you can add whatever you need.

4. Buying bulk meats. If you can, go in with family or friends on whole or partial cow or pig.

5. Gardening. Even in pots, you can grow lettuce greens, tomatoes, cucumbers, etc. In my suburban yard, I also planted three fruit trees and I'm able to grow a lot of squash and beans as well.

6. Soups, stews and casseroles. Anytime you can add broth and extra vegetables/beans, to food goes further and is more filling.