It's like this @Henrywrites , as you say, "You can't just go to the market with just any product and expect them to buy everything you are selling" And you knew that there are many such people, which is possible in certain types of popular markets where they have variety. But in an established business it shouldn't be done.Knowing the type of product that your prospective customers want is a must. You can't just go to the market with any product and expect them to buy off everything that you are selling. Take out time to work on how these customers react to different products and find the one that is in high demand.