When you find a good sale on food items or things you use a lot (paper products, soap, etc.) it’s a good idea to buy a few months supply of these items. After a while you will have a pantry with items bought on sale, lowering your overall costs. I’ve read that a particular item will go on sale about every 4 months, but I’ve not checked that out.
Traditionally stores have their best sales of the year on food items during the months of November and December. Almost all baking suppies go on sale then as well as many other items. Frozen turkeys are on sale then and are more available than at other times, so if you have the room in your freezer it’s a good time to stock up on turkeys.
It’s also nice to not have to run to the store as often when you have things on hand. That’s especially nice in the winter months when it’s not so nice to be out. Be sure to stock up on chicken noodle soup and/or chicken rice soup for cold & flu season.
I’m not one to stock up too much on food, but I do like to have my pantry available for convenience and savings. If you believe that inflation is coming it’s a way to hedge a little bit against inflation in food prices. Some people like to have a well-stocked pantry in case of job loss, but I prefer cash savings to that. YMMV