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.
Marketing Budget _ The marketing budget explains how business owners will pay for marketing efforts. A marketing budget should be based on a percentage of gross sales, advertising mediums utilized, and other factors. Some marketing expenses to include in the marketing budget are tradeshows, events, and sponsorships.