One other thing: "White space is your friend." Use plenty of it on your resume. Don't use too-small font pitches jammed onto a page with lines of verbiage strung from left-margin to right-margin. Using bullets also shows your ability to focus on what matters. Clear formatting that shows where you tenure with one employer ended and another began also helps whoever is reading your resume.

And remember, it's not against the law to have more than one version of your resume. Custom-tailoring a resume to fit a given job-title or -description is perfectly appropriate. But if you do that, keep a log of what version you sent to whom. The last thing you want to do is show up for an interview with copies of a resume that is different from the one you first sent.