Other than using grocery store loyalty cards, which I have discussed at length, there are other factors involved, seen, and unseen, that will influence your shopping behavior. These may either work for or against you. I recommend carrying a calculator to help you determine unit prices.
If I had the time, I would conduct an identical survey of my own to back up what the Associated Press found. Some of the article’s focus is on strategies that stores have used for years that you might not be aware of, but others are more recent. Read them, and how you can counter them, here.
I invite you to share with me your tips, tricks, and hints as well.