How do I create a new page based on a page I just made?

How do I create a new page based on a page I just made? I want to keep the format of the page I made, and use it to clone to make more pages. I have the sidebar widget all set up, and just need to change content and elements on the main region.

Thanks.

PS. I have a few questions out on the community, and have had some really helpful responses, but I cannot figure out how to respond to thank those people who have helped me.