Add 2 for each level of heading above it. Instead of many different font sizes, just bold the current size for paragraph headings. Never use more than three font sizes for a document. Never use more than three styles for a document. Two is normally adequate.
Bullets Use bullets for lists.
Number the lists if there is a preferred ranking. Enhanced Text Use Bold text for emphasis or headings. Use Italic font for titles, words you would otherwise quote, or minor headings. Do not underline if bolding or italics would work. Headings Center major headings.