USPS 421 Retail Clerk Test 2025 – 400 Free Practice Questions to Pass the Exam

First Class Mail is the most economical option for sending items under 13 ounces within the United States. This service is specifically designed for letters, postcards, and lightweight parcels, providing a cost-effective solution for individuals and businesses looking to send items quickly and efficiently.

One of its key advantages is that it offers delivery within 1-3 business days depending on the destination, ensuring a faster delivery compared to some other mailing options. The pricing of First Class Mail is structured to be budget-friendly for lightweight packages, making it an ideal choice for everyday use when sending small items like greeting cards, bill payments, or personal letters.

While Media Mail is a cheaper rate for sending educational materials, it does come with restrictions and may take longer for delivery. Express Mail and Priority Mail, while faster services, carry a higher cost that makes them less economical for lighter weight items under 13 ounces when compared to First Class Mail. Thus, for light packages, First Class Mail stands out as the best and most economical option.