I have broken the tasks down into sections: General tasks are ideas you can use to make your website better for visitors. The SEO section contains tips which can help you gain more visitors from search engines. The Speed section focuses on how to make your site load quicker for users. Theme improvements will help you make your site look better. The plugins section contains a couple of ideas for recommended plugins. Security has quite a few tips to prevent hackers gaining access to your site and the Spam section will help you keep them at bay.