Negative keywords are words you add to your Google Ads campaign to stop your ads from showing when someone searches using those words. For example, if you sell premium shoes and you add the word "cheap" as a negative keyword, your ad will not show when someone searches for "cheap shoes." This saves your money because you are not paying for clicks from people who are unlikely to buy. Without negative keywords, your budget can drain fast on the wrong audience. How often do you review and update your negative keyword list?