Be as specific as possible. Double space between sections, single space within sections. And always keep the resume clean and wrinkle free. Its best to produce your resume on a computer then save it on a disk. Then you will be able to modify or change it easily when needed.
Most libraries have computers available for use.
There are services that will produce your resume for you as long as you have all the information for them. There may be a high school student in your neighborhood willing to do it for a lot less than a service would. More detailed information on all aspects of resume writing is available at your local library, bookstores, or on the internet. Keith Martin is a high school teacher of consumer economics in the Lyon County School District. He has taught these skills for over ten years.