When you're writing a business plan in a situation like these, you need to address a few issues the intentional entrepreneur has already pondered. The first is do you really want this idea to become a full_blown business? Certainly it's flattering when you realize there's a market value for something you were doing anyway, but that doesn't always mean you should launch a business. A lot of accidental businesses form around fads or seasonal items, and may not be robust enough to function as year_round, money_making, enterprises.
Succession Planning _ Unless you plan to run your business for your entire life, you will need a plan of succession. If you are the only person who can run and operate your company, it is doomed to fail when you can no longer run it. Create a plan that will spell out what steps will be taken to either sell your company or hand it over to another manager. Develop a system that allows your business to be run without you. An operations manual that details the key components of running your company is the first step in succession planning. Consult an attorney about the legal aspects of either selling or transferring ownership of your company.