Okay, now you've written the proposal. The finish line is in sight, but you're still not quite done. Take some time to make your proposal visually appealing. You might want to incorporate your company logo, use colored borders, or employ special bullet points and fonts. Just make sure that any added graphic touches match your style and the tone of your proposal. Don't forget to spell_check and proofread every page. For the final check, it's a good idea to recruit a proofreader who hasn't read your proposal before. It's way too easy to miss errors in your own work.
If you are pitching your idea or services to multiple parties, the one thing you do not want to do is send out a general form letter along with a standard brochure or stack of resumes. That sort of 'one size fits all' approach cannot substitute for a real proposal. The goal of a proposal is to persuade the client or boss to endorse your idea and let you do the job. To succeed at convincing them, you need to focus your message to a specific situation, gain their trust and show them that you know what you're talking about and can deliver what they need.