The whole point about being in business is to highlight your particular talent / product / service which you want to sell to other people. Preferrably in enough quantities to make you some money. It’s quite easy to enjoy a hobby and be good at making things, or doing services for other and not actually make any money out of it. If you have certain rigid outgoings such as rent, utilities, living expenses and your hobby is either getting in the way of your normal job, or your’re giving things away too cheaply, then a radical new way of thinking will be needed. If you decide you want to markt this product / service, reaching a comfortable number of customers quickly is needed. Not everything can be handled in a word of mouth manner. A good web site is essential. As is other business marketing tools. But unless you know your way round, it will be much quicker and cheaper to use an agency specialising in these methods.