3. Beware of store loyalty programs.
Coupons, store discount cards, and even advertisements are all designed to promote store loyalty, Salsbury writes in her book.
But, she says, you’ll get the most out of your food dollar if you shop around instead of sticking to the store that gave you a card.
Read the ads and write down which stores are having (real) sales on the items you need, and “you can normally save $25 go $30 per trip,” she says.