We install the SEO Yoast plugin on every website we install. It helps us to ensure you have all the tools you need to be successful. You should perform some keyword research to determine the best keywords and keyword phrases for your business model. Once you have your list you can begin crafting the phrasing on your pages to best utilize those keywords.
The SEO Yoast plugin is a great tool to help you take advantage of those keywords. We found this great video by Online Media Masters that explains how you can best use this plugin.