Using this sling bag is a piece of cake. Just adjust the shoulder strap to your preferred length and sling it over your shoulder. It's great for carrying your daily essentials like your phone, wallet, and keys. When you're traveling, it can hold your travel documents and small items. As for maintenance, it's easy. Just wipe it with a damp cloth when it gets dirty. Avoid exposing it to direct sunlight for long periods as it might damage the leather. Also, keep it away from sharp objects to prevent scratches. If you're not using it, store it in a cool, dry place.