How can you find your niche?

There are currently quite a lot of Internet Marketers are exploiting Mini market, even Micro niche, they focused SEO domain to configure traffic comes from the search engines, money mothods: Pay per click (Adsense, Chitika, etc.)the CPM network, Affiliate products and more...
- One quick an easy way is to look over your list of clients and see which you love working with and those you hate working with. The ones you love will inevitably have something in common.
- Look at the things that make you, YOU. What can those things do to change your business game plan?
- Ask yourself what do you LOVE doing in your business and how you could spend more time doing that?
- Don't restrict yourself to doing what you "think" you should be doing.
- Give yourself permission to mix what makes you unique aside from your business WITH your business.

Any other thoughs ?

I prefer to use some Paid tools to get good results, i don't want to market some product here but some tools worth buying.