*Changing these variables WILL make your site look TOTALLY unique to any other site (basically, just changing to a “matching” (blue-ish) Header-Image alone will make your site looks different =).
Here are just 3 things you can change in the “Presentation” => various “Configurations” interface:
1. Theme, Single Post, and Single Page column layouts: 1Col, 2L, 2R, […]
Related posts on column layouts, header image, header menu, interface, menu positions, page column, variables