You need to know everything obtainable about your customers. This list will get you started. You will need their age, sex, marital status, income levels, education levels, geographic locations, where they shop, if they go to church, if they have kids, ages of children, political affiliation, what they like about your company, what they don't like, why they shop with you, what they value about your products/services, what they like the most/least about products/services, and whether prospects are unaware of your brand or products/services. Customers want you to know certain things about them and if you do, they will remain loyal to you as you take time to know them.
A quote that I use on a regular basis is "If you fail to plan, you are planning to fail" by Benjamin Franklin. In business, the most important plans to have are a business plan and a marketing plan. Today we will discuss the marketing plan. The marketing plan shows the direction of all marketing and advertising efforts. Remember, marketing is the total efforts of getting together buyers and sellers, whereas advertising is the types of communication used in marketing. Advertising includes TV, radio, online, print, and other mediums. Let's go over some important parts of the marketing plan that will help your business succeed.