Using these Dragon Shield Dual Matte sleeves is super easy. Just slide your TCG cards into the sleeves one by one. For storing, you can place single - sleeved or double - sleeved cards right in the box that comes with the sleeves. When shuffling, the textured back of the sleeves gives you a great grip. As for maintenance, keep them in a dry and cool place to avoid any damage. If they get dirty, you can gently wipe them with a soft cloth. Also, be careful not to use sharp objects near the sleeves as they could tear them.