Tracking the cost of food by unit size is a practical and effective way to make informed and economical choices while shopping. By examining the price per unit, such as per ounce or per pound, consumers can easily compare different brands and packaging sizes to identify the most cost-efficient options. This approach enables individuals to maximize their budget and get the best value for their money. Additionally, monitoring unit prices encourages mindful consumption, as it highlights the true economic impact of various product sizes. Overall, tracking food costs by unit size empowers consumers to make economically sound decisions, contributing to smarter shopping habits and financial efficiency.