@Blessed Your mention of canning reminded me ...
Nowadays we can freeze things instead. I used to eat a lot of beans (black beans, etc.). I'd cook a big batch and freeze portions. We can also freeze fruit, for example, in-season fruit that we might get for free or almost free.
I buy meat on sale and freeze large quantities, even though my only "freezer" is the top of my fridge. Sometimes meat comes in boxes or on styrofoam trays. Repackaging in Ziploc bags can save a lot of freezer space.
I buy large hams and roasts on sale, and cut them into portions for freezing. Some meats, e.g., turkey and ham, are really cheap at holiday times. Others might go on sale during barbecue season.