Using this backpack is super easy. First, open the main compartment and start placing your loose sleeved trading cards inside. You can arrange them in any way you like. For your MTG playmats, just use the exterior pockets with playmat straps to secure them. When you're done with your gaming session, simply unload your cards and playmats. To keep your backpack in good condition, avoid over - stuffing it as it may damage the pockets or straps. Wipe it clean with a damp cloth if it gets dirty. Also, store it in a dry place when not in use to prevent any mold or mildew growth.