Besides the About page there may be other static content that you should add to your blog. If you have another website as well as your blog, ask yourself whether you could bring that content into WordPress, so that all your web content is together in one place.
There are many other static pages that you may wish to add. For example, designers, photographers, and artists often have a portfolio page to display their work. Or you may wish to set up a page to showcase a handful of your bestselling products. If you've written a book you could add a book page with some blurb and a link to Amazon. As you know, WordPress is more than capable of handling static content alongside your dynamic blog posts.