Is your ceramic pet dish getting stained or grimy? Try cleaning it by filling the bowl with regular Coca-Cola, letting it sit for at least one hour, and then rinse thoroughly. The acid in the soda will clean the ceramic nicely. If all marks or grime isn’t removed afterward, use a scouring pad to brush it away.
Please note: Keep the bowl away from pets while it is being cleaned. Pets should never have soda!