Well, the one-page rule is not as hard-and-fast as it once was... provided you have something relevant to say. A pleasing easy-to-scan format with well-used white space has a lot of benefit over sheer size.
That said, organizing your relevant information for the job you are applying for is a totally separate aspect. Let's remember, a job search is a full-time commitment. Spend the time on your resumes and treat it like that.
