@AlphabetSoupchu asks
a promo came in clear plastic. should i open it so I can sleeve it properly?
Jeff answers
I'd decide what you're collecting first: the card itself or the original sealed presentation. You can protect the unopened item without forcing it into a tight holder. If you open it, that sealed presentation is gone. There's no need to make the decision before you've identified it.
— Jeff, infinitepulls.com