The three main categories of consumer goods include durable goods, nondurable goods, and services. Durable goods, such as furniture or cars, last at least three years. Often, economists will watch durable goods spending to track the health of the economy. Nondurable goods are items with a shelf life of under one year, and are consumed rapidly. Fast-moving consumer goods fall within this category. Finally, services include intangible services or products, such as haircuts or car washes.