If you include a cover letter P.S. be sure that you use it to convey something that is important to the employer.

In your cover letter P.S., you might mention your experience and success rate using a particular piece of equipment or a computer program that you know the employer uses. 

In another cover letter P.S., you might include a detailed report (that's not confidential) or a newsletter that you've designed that is very impressive.

Or, in a different cover letter P.S., you could include an article that you've written that shows your expertise in the field you are seeking. 

If you read an article about a company's product or services and you have relevant experience, use a cover letter P.S. to mention it.

Don't use a cover letter P.S. to tell employers how wonderful their company is and how much you'd like to work for them. They hear such comments all the time in cover letters and such comments normally have little impact.

Below are more cover letter snippets, cover letter tips and cover letter samples from my book Proven Resumes Strategies That Have Increased Salaries $9.95 instant access which provides more detailed information on cover letters.  It is filled with success stories of job seekers who thought they were not qualified for the jobs they wanted - but wrote their cover letters anyway - and landed good jobs.  The cover letter strategies in my book have been responsible for helping clients raise their pay $2,000 to $80,000 more per year.  

If you're having difficulty creating a resume and cover letter - you might consider hiring me to write your resume.  The fee is $150 or $250.