2. I try to buy in bulk as much as possible. I am also shopping for my aging mother who can't handle bulk items such as large bottles of tea and juice. So I bought some cheap small pitchers and I refill them from the large bottles as she empties them.
3. More fresh items rather than processed items. Create salads from scratch rather than bag-o-salads. I've found ways to keep the items fresher for longer so I can use (for example) an entire head of lettuce before it goes bad.
4. Watch lots of YouTube videos. Lots of great advice on recipes, keeping food fresh, what can be shoved in the freezer, etc.
Safeway coupons. $5 Friday. Drink water not juice-doctors orders. A rotisserie chicken makes sandwiches and soup broth afterwards.
I make jugs of bone broth. I also make most of my own condiments especially chili oils, salsas, sauces, salad dressings. As well as pickles, kim chi, sauerkraut. Back when I drank I brewed kraptons of beer. Though I don’t really do this to save money, and in some cases it probably costs more, I mostly do it because it tastes infinitely better, and there is satisfaction to it.