Using this Frank Green reusable ceramic cup is easy. Just fill it up with your favorite hot or cold drink. The spill - proof design means you can carry it around without any worries. When you're not using it, close the lid to keep the liquid inside. As for maintenance, you can clean it at home. Just use warm soapy water and a soft sponge. Avoid using abrasive materials as they might damage the ceramic lining. Also, don't put it in the dishwasher. With proper care, this cup will last you a long time and keep providing you with a great drinking experience.