Using this travel waistbelt is easy. Just put it around your waist and adjust the length to your comfort. To access the hidden zip pocket, simply unzip it carefully and place your currency inside. When you're done, zip it up securely. As for maintenance, keep it away from sharp objects to avoid tearing the polyester webbing. You can clean it with a damp cloth if it gets dirty. And remember, always check the zip regularly to make sure it's working smoothly.