For instance, instead of selling desserts, sell brownies in ten different flavors. The best brownies, richest, chewiest, most delectable brownies in the world. Now you have a niche. When people think of brownies as people often do, they will think of you. Additionally, when they think of dessert they are also likely to think of you.
Every business has a niche possibility.
Consider what yours are. Instead of selling gifts sell candles. Instead of selling books sell cookbooks. Now play with it and see what you come up with. In This is very important.