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.
You can look online for sample proposals that you can work from, in many cases you will be able to download a template that you can work from. You will most likely find that there are dozens of sites offering hundreds of different templates to download. It may take a while, but you will find that there proposal forms that will match almost any need including yours. Take your time and select the one that best suits your needs.