My notes from Hackers & Painters by Paul Graham:
The way to create something beautiful is often to make subtle tweaks to something that already exists, or to combine existing ideas in a slightly new way.
There are only two things you have to know about business: build something users... See more
The 3 W's of Business:
What - is the problem you are solving?
Who - is the customer that needs this?
Where - are they so you can market to them?
That's it.