Cost of living: How can I save money on my food shop?

I highly recommend having a weekly menu, so you know what you are going to cook/prepare for your meals each week. I post this on our fridge and our family of five always knows what to expect. This not only saves money but eliminates the stress of “what’s for dinner”? I know exactly what I need to get, and I stick to my budget because I go to the supermarket with a plan, plus I check the fridge/pantry before I go shopping. Michelle Lutchman, Surrey