Hunger will make us buy more than what we need. In fact, an empty stomach can even force us to go to shelves other than food. It’s interesting to know that as a result of a research, hunger sends the message “I want food” to the brain. The brain accepts it as “I want” and causes the person to go shopping for unnecessary items. Advice: Besides a shopping list made in advance, paying with cash can also help you save money. Further research shows that people tend to spend less when they pay with cash instead of a credit card.