The great products in the world are born of simple ideas. Why? They are the ideas that connect with the simple needs of people. The simple needs, when met with a simple solution, are those sales that just seem to happen without complicated marketing. Getting there is all about knowing your customer or those people that would be interested to learn more about what you have to offer. Do your homework (called research if you are an actual marketer) and understand your market (called people if you are not an actual marketer).
Best of luck.

