In this three-minute video demo, you'll learn how to use the Free Negative Keyword Tool  to find negative keyword candidates that will help you:
Improve Click-Through Rate  (CTR) – Negative keywords reduce uninterested impressions, so the percentage of people who click on your ad will be greater. CTR is a major factor in determining Quality Score.
Create More Relevant Ad Groups – Tightening the relevance of your ad groups also helps improve CTR and Quality Score.
Save Money Account-Wide – By avoiding paying for useless clicks, you save a lot of money. Additionally, with higher Quality Scores , you'll pay less for better ad impressions across the board. That means more traffic and sales for lower costs!