Created using proper web design techniques, my websites are just as nice to look at for the user, as they are for search engines. Your customers are able to more easily find you, because a website designed with web standards is inherently optimized for search engines.
I also build responsive websites. This allows the design of your website to change, depending on the screen size. With increasing web traffic from phones and tablets, it's more important than ever that your website be easy to use on smaller screens.