Sports Card Storage & Supplies Guide
Cards are paper. Archivists recommend keeping paper cool, dry, stable, and out of light; avoid attics, basements, and damp places (Library of Congress; National Archives).
Already seeing curling, fading or sleeves sticking? See why cards warp, fade or stick.
Info may be outdated. Verify with the source.
Disclosure: some links may be affiliate links. We may earn a commission at no extra cost to you.