The post-it notes on the right appear throughout the site and change from day to day depending upon the performance of your site.
They are spilt between Manual and Automatic System tasks and you can even Create Your Own Task if you want to use the tool to remind you to do something.
You can click on a task and get further details of what needs to be done and how to do it. Once you (or your web developers) have worked on the task you can mark it as not started, work in progress or completed.
You can also make notes on a task to remind you later - or if multiple colleagues are working on the SEO campaign at once.