It does not have to be long or overly complicated. It simply has to have the elements required to put your goals into action. Developing a SWOT analysis (strengths, weaknesses, opportunities, threats) will help you to identify problems before they start. Craft your own or hire a business writer to create a dynamic plan that will guide your operations. An effective plan is one of the most important elements over overall business forecasting.
To me a small business is one of the best things you can have if you enjoy operating a business; however, it does require a lot more than just enjoying ownership and running a business. Especially if you are starting a small business and even if you have had a business for many years, you should know what you want for your future. Never guess about your business. You see, without a plan, you are just guessing. We business people work hard and we always continue to hope for the best but when we guess, we're taking a lot of risks. You've probably heard the old saying from an unknown author that says, "If you fail to plan, then plan to fail."