: For USPS Priority Mail Flat Rate, you can ship up to 70 lbs domestically.
How to Buy Flat Rate Postage Online: A Step-by-Step Guide In today’s fast-paced world, standing in line at the post office is often a luxury of time we don't have. Whether you're running a growing e-commerce business or just sending a heavy care package to family, learning to can save you significant time and money.
This is where you save the most time. You have two main routes for buying postage online: Option A: Direct via USPS Click-N-Ship® Online Shipping with Click-N-Ship - USPS