Practical, tested answers for shipping trading cards cheaply — written by sellers who ship every week. No fluff, real USPS math.
Real weighed counts for every USPS letter tier — 10 at 1 oz up to 50 at the 3.5-oz max — plus a card-count postage calculator.
Read the chart → How to ship multiple trading cards in one envelopePlaysets, lots, and bulk singles at letter rate: what USPS actually allows, why eBay Standard Envelope won't cover lots, and the under-a-minute method.
Read the guide → PWE vs bubble mailer: what card shipping really costsThe 2026 cost math side by side, when each option wins, and a monthly savings calculator for sellers.
Run the numbers →