Boldface type is usually okay, but avoid it if you want to be safe. Avoid any graphics and shading. Use horizontal or vertical lines sparingly. It is best to avoid them entirely, but if you do choose to include a line, make sure there is plenty of room on either side of it. Do not compress your resume to make it fit on one page.
More white space means a more scannable resume.
Use an ink jet or laser printer to insure a good quality print job. Photocopied resumes lose clarity in the process. Avoid abbreviations, even for degree titles. Use traditional resume formats. Your name should stand alone on the first lineof your resume.