Whatever you do, be specific. If you have a skill, then describe something you did that illustrates the use of the skill. @Seaofclouds provides a good example of this. I would have one little quibble with her example in that I would be careful about saying “extremely effective.” I read that and I think, “says who?” If you get in to see me for an interview, you’ll be backing that up and also giving me a reference to back you up. If you are extremely effective, then say someone else told you that, not that it is your own assessment.
I am a big believer in the targeting job hunting approach, not in the shotgun approach. I had two graduate assistants over the years who illustrate the extremes here. One sent out hundreds of resumes all over the country to institutions where the jobs were not very closely related to her interests. The other researched the university departments carefully, and applied to maybe twenty or thirty.
The first got less than five interviews, and only one offered her a job—although it was a decent salary. It wasn’t at a research institution, and she was more interested in research than in teaching. The other had also about five interviews, but they were all interesting to her, and she got several job offers.
Two years later, the first called me and she was miserable and was looking for work again. She took a job just to have a job. She hated it. The second was pretty happy in her job. I haven’t kept in touch, but she’s probably still there.
I think it is far better to target your job search. Find a company. Find a position you are interested and then target you resume to that job. But don’t even send them the resume. Call them Ask to speak to someone just for informational purposes. Interview them. At the end of the interview, give them your resume and ask them to pass it on to a couple of other people. Also ask them to give you the names of two other people you should talk to.
Then build your network. You want to look for your job, not let an an employer catch you. When you drag a seine, you get a lot of junk fish as well as the good ones, and it’s not always easy to tell the difference. When you land yourself on a hook, you’re the only one they look at, and either they take you home, or they throw you back. But you don’t have to compete with all the other fish in the net.