How‑To

How to ship skincare and lotions

Prevent leaks and protect from temperature swings.

Tips

Seal caps, bag liquids, use insulation in heat, and choose faster services in summer.

Dimensional Weight: How to Calculate and Optimize

Dimensional weight (DIM) can make light packages expensive. Learn the formula and strategies.

USPS Box Sizes: Free Priority Mail & Flat Rate

USPS offers free boxes for Priority Mail and Flat Rate shipping. Know your options to maximize savings.

Shipping Box Size Guide: Choose the Right Box

Selecting the right box size saves money and protects items. Use our guide to find the perfect fit.

Explore more guides and tools for your shipping needs

Prevent shock damage and comply with battery rules.

Packing techniques to minimize breakage and claims.

Insulation, ice packs, and service selection to keep items fresh.

Disassemble and protect components to avoid damage.

Protect screens and corners, and comply with battery rules.

Prevent melting and scent transfer during transit.

Free tools

See how much you could save by switching to discounted carrier rates.

Estimate the refunds and overcharges hiding in your UPS/FedEx/USPS bill.

Find out what returns really cost your store every year — and what is recoverable.

Generate an evidence-backed dispute letter to fight a chargeback in minutes.

Want us to find the money leaking out of your shipping? Get a free profit-leak audit.