There's no question that hard work and a little luck is what it takes to BE successful. But a little knowledge, especially when it comes to setting up your business, will help you STAY successful.While many business owners give a lot of thought to location, store décor, customer service, hiring employees and management issues (and rightly so); choosing the proper business structure (such as sole proprietor, partnership, corporation, limited liability company) doesn't get the attention it deserv.