Is there any way of copy/pasting, duplicating, or auto-generating posts for fast testing?

I always find myself creating posts every time to test layout or design.

For example, I create stuff like:

Content 1

Lorem ipsum dolor sit amet,
consectetuer adipiscing elit, sed diam
nonummy nibh euismod tincidunt ut
laoreet dolore magna aliquam erat
volutpat. Ut wisi enim ad minim
veniam, quis nostrud exerci tation
ullamcorper suscipit lobortis nisl ut
aliquip ex ea commodo consequat.

6 times.

Is there a fast way of copy pasting posts, duplicating them or auto-generating them, perhaps?

I use Demo Data Creator plugin with it you can create and set:

• Number of users to create
• Number of blogs per user (for WPMU/MultiSite)
• Whether users must have a blog
• Number of categories in each blog
• Number of posts in each blog
• Number of paragraphs in each blog post
• Number of pages in each blog
• Number of top-level pages
• Number of levels to nest pages
• Number of comments per post for each blog
• Number of links in blogroll for each blog