Good ideas, I like numbers 2, 3, and 6 personally. I think in addition to persistence and determination, creating a successful home-based business also takes courage. It can be a scary proposition to quit your day job to go it alone. I always admire people who make this move, and I think that in general they are all the more happy for it. There is not doubt, though, that you have to go for it 100% in order to make it happen!
The internet changes so fast that one year online equals about five years in the real world. But the principles of how to start and grow a successful online business haven't changed at all. If you're just starting a small business online, stick to this sequence. If you've been online awhile, do a quick review and see if there's a step you're neglecting, or never got around to doing in the first place. You can't go wrong with the basics.