In the same theme as my other designs, I like to have all my cards in sleeves and then design an organizer tray to fit the sleeved cards.

This design is sized for Fantasy Flight Games sleeves:

Standard Card Game Size = Color Code Gray
Sleeves are 66.5mm wide x 94mm tall

The card slots are 69 x 97

Fantasy Flight sleeves are my favorite, but since they don't make a size for the larger cards, I used Sleeve Kings "Tiny Epic Compatible" (88 x 125 mm) sleeves.

It worked out nicely that all the planet cards fit in one slot, and all the secret mission cards fit on top of the tokens.

Now that your OCD is satisfied, go colonize some planets!