Design Your Own PCBSolderless breadboards are great for building and testing circuits because they are reusable and don't require soldering. However, if you want a real proof of concept or finish-quality look, you'll want to design your own printed circuit board (PCB).
Designing your own PCB is easier and less expensive than you might think. Some major benefits to using PCBs are that they can be more easily mass produced and you get consistency. Not only that, but the component and circuit density can be increased greatly. And, personally, I like to be able add my own logo to my designs.