This beginner-friendly guide walks you from idea to first profitable orders—choosing a printing method (DTF, DTG, vinyl, sublimation), budgeting a realistic starter kit, setting prices that actually cover your costs, staying on the right side of UK law (labelling, returns, tax, data protection), and shipping efficiently with Royal Mail or couriers. You’ll set up a simple design-to-dispatch workflow using accessible software, plug into marketplaces like Etsy and your own storefront, and adopt a lean “test, learn, repeat” approach so you don’t overspend before you’ve found your bestsellers.