In my opinion, if you want to starting a business, start with something that you love and that you experienced or know about it. Often someone starting a business just follow ambitions, he just saw someone successful with his business and success. He decided to starting the business, but he did not seasoned and not too like what must to do in that business. Thus, in the short time it has failure. The ultimate purpose of a business is profit. But to achieve that ultimate purpose, a lot of things we have to do. A business plan is the first thing you should do. Calculate your capital strength. If you are already running a business, you have to perform the control and supervision of your business with right. With great skill and passion, maybe you can improve your business. However, sometimes maintaining become something more difficult.
The secret (not really a secret at all) to a successful business is customer satisfaction. If you pay attention to your customers needs and go the extra mile for them, you will beat the stuffing out of your competition. Successful business=customer service.