How to start collecting, part 5: storage and care

Condition is the whole game. A card that leaves your hands in the state it arrived keeps its value; one that picks up a corner ding in a shoebox does not. Protection is cheap and the rules are short.

Raw cards

• A penny sleeve first: acid-free, archival polypropylene, the kind BCW and Ultra PRO make. It goes on every card worth more than the sleeve.
• A rigid holder second: a toploader for cards you handle, a semi-rigid Card Saver for cards you will send to a grader. PSA and CGC require a penny sleeve inside a Card Saver for submissions and reject toploaders, magnetic holders, tape, and sticky notes in transit.
• Binders are fine for what you look at often, with side-loading pages so cards do not slide out.

The environment

Collector storage guides that cite grader and BCW guidance put the target at 65 to 75 degrees Fahrenheit and 40 to 50 percent relative humidity. Above about 65 percent humidity, foil cards can warp within weeks. That rules out attics, garages, and most basements. Keep everything out of direct sunlight and away from UV; fading is permanent.

Slabs

A slab protects the card, not itself. Scratches on the holder cost you at sale, so slabs go in fitted slab bags, stored upright in a padded slab box. PSA and CGC slabs share dimensions; SGC and BGS holders are slightly wider, so buy boxes accordingly. Never try to open a slab: the tamper evidence is the point.

Shipping

Sleeve, rigid holder, then a team bag, then a bubble mailer or box with the card immobilized. Every trade in the SlabX marketplace will ship this way, and a SlabX ship kit with these exact pieces is on the roadmap so the packing is never the weak link.

Do this week

• Sleeve and holder every card you would mind losing.
• Put a cheap hygrometer where the collection lives and read it for a week.
• Move anything out of the garage.

Next: part 6, what a card is worth.