Weigh your package and measure its dimensions (length, width, height).
Shipping online (e.g., via USPS Click-N-Ship®) often provides lower commercial rates than paying in person. To give you the best guide, are you looking to ship: A small letter/envelope? A small package (e.g., for eBay)? Large, heavy boxes? Also, do you have a printer available at home? How to Prepare & Send a Package - USPS buy prepaid postage online
A return address is required for all prepaid labels. Weigh your package and measure its dimensions (length,
Sites like Stamps.com or Pitney Bowes provide software to buy postage. height). Shipping online (e.g.