Plastic bags are incredibly versatile, making them a go-to packing solution for a broad range of applications. In agriculture, for example, farmers often use plastic bags to store and transport grains, seeds, and fertilizers. The bags can be sealed tightly to protect contents from moisture, pests, and other external factors. In manufacturing, plastic bags are useful for packaging finished products, ensuring they reach retailers in pristine condition. The lightweight nature of plastic bags also contributes to reduced shipping costs, as they add less overall weight compared to traditional packing methods.