Once you have made a product and launched it in the market, your work is not over here. You have to promote it so that it leaves a mark in the minds of your customers. No one will look at you in a world full of competitors if you do not stand out amongst the crowd.
For Example, if you create your own tshirts , you need to decide the niche of your product, the target market, analyze your competitors, do the SWOT analysis of your product. It would be best if you also had a clear understanding regarding the promotional channels you want to cover, set short term and long term goals and various other factors are to be looked into. New products require apt marketing planning in the initial stages. Checking upon various factors and establishing your market will boost your sales effectively.