Using the Cube Pocket 15+ is a breeze. First, open the innovative locking mechanism and gently slide your cards in. You can put in double - sleeved, single - sleeved, or unsleeved cards according to your needs. For cube drafting, just treat it like a booster pack and draw cards as you play. You can also use it to organize sideboards, tokens, or cards in your board game box. When labeling, use a pen on the write - on strips to mark what's inside each pocket. As for maintenance, keep it away from sharp objects that could damage the locking mechanism or the interior. A simple wipe with a dry cloth will help keep it clean. If it gets wet, let it dry thoroughly before using it again.