Using this Tervis water bottle is a breeze. First, choose between the chug spout and straw spout according to your preference and simply swap them as needed. To open the bottle, just press the push - button with one hand. Remember to lock it using the safety lock when not in use to avoid spills. When it comes to carrying, grab the comfort handle. For adding ice, the large lid opening makes it easy to drop ice cubes inside. As for maintenance, you can wash the bottle with mild dish soap and warm water. Don't use abrasive cleaners as they might damage the bottle's surface. Also, make sure to dry it thoroughly before using it again.