Using this backpack is easy. You can put your daily essentials like laptops, books, and clothes into the interior compartment and smaller items like keys and cards in the slot pocket. The external USB port allows you to charge your devices on the go, just connect your power bank inside the bag. When carrying, hold the soft handle or put it on your back. As for maintenance, keep it away from sharp objects to avoid scratches. If it gets dirty, you can use a soft, damp cloth to gently wipe the surface. Don't use harsh chemicals as they may damage the PU leather. Also, store it in a dry place when not in use.