Using this water bottle is super easy. Just fill it up with water and use the time - marking to keep track of your water intake throughout the day. It's great for any situation, whether you're at work, at the gym, or just out and about. As for maintenance, remember it's not safe to put in the dishwasher. So, wash it by hand with warm water and a bit of soap to keep it clean. And since it has copyrighted artwork, take good care of it to keep the design looking great.