Using this sling backpack is a breeze. Just put your daily essentials like keys, wallet, and phone in the organization pockets. For your 13 - inch laptop or tablet, place them gently in the appropriate compartment. When you're out and about, wear it across your body for easy access. As for maintenance, clean it with a soft, damp cloth regularly to keep it looking its best. Avoid getting it soaked in water for a long time and keep it away from sharp objects to prevent scratches on the canvas, leather, and metal parts.