Get an office. You will need a space from which to run your business. This can be a home office if you require little space and will not have employees, or it can require an entire workshop or warehouse. Look at renting in a low cost neighborhood or business incubators instead of a fancy address. Some universities make space available at a low rent for new business ventures based on an innovative scientific idea. It depends on what you will be doing and how big you intend your business to be. Make sure the space is coded and legal for how you intend to use it and within your budget.