How to Ship Cards (Envelope vs. Ground Advantage)
Shipping is where sellers lose money or lose cards. Here's how I choose between eBay Standard Envelope and USPS Ground Advantage based on a card's value.
Disclaimer: Everything in this post is my personal opinion, shared for information and entertainment only. It is not financial, investment, or purchasing advice, and nothing here is a recommendation to buy, sell, or hold anything. The card hobby carries real financial risk, so please do your own research and make your own decisions.
Shipping is where a lot of newer sellers quietly lose money, or worse, lose cards. My whole approach comes down to matching the shipping method to the card's value, and for me that mostly means choosing between eBay Standard Envelope and USPS Ground Advantage.
Get this part right and you protect both your margins and your reputation.
eBay Standard Envelope
For lower-value cards, Standard Envelope is cheap and simple, and it's great for singles that don't justify a full package. Just know that it has limited tracking and a value ceiling, so it's meant for the more affordable end of your inventory, not your big hits.
USPS Ground Advantage
For anything more valuable, I use Ground Advantage in a bubble mailer. You get full tracking, and you can add insurance, which is exactly what you want once a card is worth protecting. The extra cost is easy to justify when there's real money on the line.
Free shipping or charge for it?
I usually build shipping into the price and offer "free" shipping, since a lot of buyers filter for it and it just feels cleaner. On low-value cards where the margins are thin, charging actual shipping can make more sense so it doesn't eat your profit.
For what I actually pack cards with, I keep my go-to gear on my supplies page.
Conclusion
Match the method to the value, protect anything worth protecting, and decide free versus charged based on your margins. This is my routine, and it's worked well for me, but adjust it to your own inventory and comfort level.