When I ask entrepreneurs and small business owners, it is not unusual for not having any marketing plan. I once read that Sir Richard Branson never had any marketing plan when he started the 1st Virgin business many years ago. In fact in one study of entrepreneurship (I couldn't recall the name of the study) was that as much as 50% of entrepreneurs and business owners don't have a business plan and marketing plan when they first started the business.
Now the question arise; how to create an effective marketing plan for a company? We all know the format of a marketing plan. Whether you make a formal or informal proposal, a plan should be such which touches all the essential points to deliver the targeted goal.