What is the best way to clean and maintain a drain stopper in a sink or bathtub?

The best way to clean and maintain a drain stopper in a sink or bathtub is to regularly remove it and clean it with a mixture of hot water, vinegar, and baking soda. Use a brush or cloth to scrub away any debris or buildup. Additionally, make sure to remove any hair or other particles caught in the drain to prevent clogs.