I actually take the time and expense to maintiain a professional business entity, Dave the Web Guy (Innovations), in which to formally organize my many spontaneous web projects, and, to provide a basis for interaction with the business community at large.
The "business" is, at present, a mere ode to my philosophy that every man and woman so inclined should have his own means and ways to create and earn revenue. DWG actually doesn't earn me anything today since I put virtually no time or resources into marketing my work. But this entity is important to develop and perfect over time so that, eventually, at least part of my regular income can be generated by doing what I love.