It seems obvious, if you are not sure how to get to your destination, you need a map, and yet, every day I meet business owners who drive their businesses with no map nor a clear set of directions. The result - they get lost, fail to meet their objectives, or fail completely. As a small business owner, you need a business plan. Without it, you are traveling blind.
Building a plan does not have to be overwhelming or incredibly time consuming. Take the simplest approach to get started; you can always refine it along the way.