1) Make sure there are no spelling or grammar mistakes on your resume. A significant number of resumes get screened out by potential employers because of sloppy spelling and/or grammar. Don't trust your spell checker. Get one or two people to proof-read your resume and keep a dictionary close at hand while putting it together.

2) Your resume is your marketing tool. It gives the very first impression of you to the potential employer. Consequently, make sure the format, fonts and overall style are attractive and well-thought out. I've seen many people with great work experience really short-change themselves by throwing together a very plain resume that is drab to look at. It takes more effort to comprehend the contents of a drab, poorly structured resume than it does to comprehend an attractive one. This is significant for you when the reader of your resume has a stack of two or three hundred resumes and can't afford to spend a lot of time on each of them.

3) If you don't like giving presentations and consider yourself weak in this area, you should seriously consider joining a group like Toastmasters. The ability to present yourself well in front of a group will work wonders for your career. I recently heard of a quiet and meek individual who was called upon to give a presentation. He stood up in front of the group and blew them away with his eloquence and confidence. When asked afterwards how it was that someone as soft-spoken as he could demonstrate such strong public speaking ability, he said that he had developed his abilities through Toastmasters.