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  1. Postage Rates & Prices | USPS

  2. Welcome | USPS

  3. First-Class Mail & Postage | USPS

  4. Send Mail & Packages | USPS

  5. Retail Postage Price Calculator

  6. USPS.com

  7. U.S. Postal Service Recommends New Competitive Prices for 2025

  8. Online Shipping & Click-N-Ship | USPS

  9. How to Send a Letter or Postcard: Domestic - USPS.com

  10. Retail Postage Price Calculator Weight and Shape/Size - USPS