Storage & mail
Storing and shipping sleeved cards so they arrive the way they left
What happens after the sleeve and the shell: boxes, humidity, mailers and the mistakes we see most.

Store upright, store snug
Toploaders belong upright in a box made for them, packed tight enough that they do not lean but loose enough that they do not bow. Lying in a pile they slide, scuff and eventually bend the bottom shell. Fill an empty row with a cut piece of foam or cardboard instead of letting cards flop.
Mind the room, not just the box
Heat and damp do more damage than a missing sleeve. Keep boxes off the floor, away from exterior walls and out of attics and garages. A closet in the living space is better than any fancy case in a hot room.
- No direct sunlight on displayed cards, even in UV-coated magnetic holders
- No rubber bands around stacks of sleeved cards
- Label boxes on the outside so you are not digging through them
Shipping a single
Soft sleeve, toploader, then a team bag or a small piece of painter’s tape over the toploader opening so the card cannot slide out. Sandwich it between two pieces of cardboard and put it in a bubble mailer. A plain envelope will go through a sorting machine, and the machine always wins.
Shipping a lot
Group toploaders in stacks of ten or so, wrap each stack, and fill the box so nothing moves when you shake it. If something rattles, something will arrive bent. For sellers this is where a 1,000 or 2,000-piece set pays for itself: you never pack a card in a substitute shell because you ran out.
Check on the collection
Open your boxes every few months. Look for sleeves that have yellowed, shells that cracked or a box that got damp. Swapping a sleeve takes seconds; finding a problem a year late does not.



