Do you want to make extra cash by doing something on the side? Selling custom t shirt on amazon will earn you good money. Custom t-shirts will even earn you more cash if you identify the correct target customers. Amazon has simplified provisions that will make your work easy and at the same time increase your earning.Merch has some benefits because they perform 90% of the work for the seller. It saves money because it reduces the cost of starting your own apparel business. You also don’t have …