If you do not have a printer, you can use the USPS Label Broker tool.
You can order free shipping supplies (boxes, envelopes, stickers) online at The Postal Store .
You will need the destination ZIP code, recipient address, and the approximate weight and dimensions of your package.
Print the label on a standard printer (then tape it securely) or use a thermal label printer.
Choose the appropriate service (e.g., Ground Advantage, Priority Mail) based on speed and cost.
Drop the package at any post office, in a blue collection box, or schedule a free pickup at your home. Alternative: Label Broker (No Printer)