1. Use the right keywords: Identify the most relevant and cost-effective keywords for your campaigns. Utilize keyword research tools such as the Google AdWords Keyword Planner to find the best keywords for your campaigns.

2. Create effective ad copy: Crafting effective ad copy is essential for successful SEM campaigns. Make sure your ad copy is relevant, concise, and includes a call to action.

3. Utilize ad extensions: Ad extensions are a great way to increase visibility and click-through rates. Make sure to use ad extensions such as sitelinks, callouts, and call extensions to maximize your reach.

4. Monitor performance: Monitor your campaigns regularly to ensure that you are getting the most out of your budget. Track key metrics such as impressions, clicks, and conversions to ensure that your campaigns are optimized for success.

5. Leverage remarketing: Remarketing is a great way to target users who have already visited your site. Utilize remarketing to reach out to potential customers who have already expressed an interest in your products or services.