The Shipping Guide
Expert advice on how to navigate complex federal regulations, pack fragile items, and choose the best carrier for your packages.
Dry Ice Shipping 101: Packaging, Labels, and Time Limits
Learn how to calculate sublimation rates, apply the UN 1845 label, and safely vent your packages to prevent explosion hazards.
Understanding Dimensional Weight: How to Stop Overpaying for Shipping
Learn what DIM weight is, how carrier divisors work, and why using a box that is just one inch too large can double your shipping costs.
How to Pack & Ship Fragile Items Without Breaking Them
Learn the Box-in-a-Box method, master the 2-inch void fill rule, and discover why writing "Fragile" on your box doesn't actually work.
USPS vs. UPS vs. FedEx vs. DHL: Which Carrier is Best?
Stop overpaying for shipping. We compare the Big Four carriers based on price, transit speeds, guaranteed services, and flat-rate box values.
The Ultimate Guide to Shipping Lithium Batteries
A complete breakdown of FAA regulations, the USPS June 2022 rules for used electronics, and how to safely pack loose batteries to prevent fires.
How to Ship Alcohol: State Laws & Carrier Rules
Navigating the three-tier system, setting up carrier licenses for your business, and why everyday consumers cannot mail alcohol through the USPS.