The best way to shop is to be prepared
Have you ever been the the grocery store and just put random things in your trolley and when you getg home, realize that you didn't actually get what you intended to get?
That changes completely when you have a plan; a guideline of what you are going to buy. This is a game changer and keeps you on track for the entire week. It is not designed to be rigid and boring. It is designed for structured creativity.