This document provides 10 steps to customize a default WordPress site or blog. The steps include changing header, link, and background colors; inserting a background image; changing permalinks; adding a header slideshow; integrating custom fonts; customizing gravatars; integrating social media; adding graphics and content; designing a footer; and personalizing the login screen. It recommends several WordPress plugins to help implement some of the customizations, such as Header Image Slider, WP Google Fonts, Social Media Widget, and Custom Login.