Using your Frank Green 20oz Ceramic Reusable Bottle with Straw is a breeze. Just open the lid, fill it with your favorite hot or cold drink, and you're good to go. For hot drinks, be careful when opening the lid to avoid steam burns. When it comes to cleaning, you can wash it with warm soapy water. Avoid using abrasive cleaners as they might damage the ceramic lining. Also, make sure to dry it thoroughly before closing the lid to prevent mold growth. And remember, since it has an unbreakable base, it can handle a bit of rough handling but still try to treat it gently for long - term use.