1. Blend your AdSense color scheme with your blog's background. Try to make the font's of the webpage match the color and size of your adsense ads. Don't tamper with the adsense html code.

2. Fill your blog articles with keyword rich content that is related to your blog's topic.

3. Use site meter (a free service) to find out what Google searches your visitors are typing in to find your site.

4. Increase the amount of traffic to your website.

5. Make sure the ads being displayed are high paying.