Gabriel Weinberg suggests, quite rightly, that aiming to build something like threewords.me is a great approach to startups for a new entrepreneur.
I couldn't agree more. It's the "throw things to the wall and see what sticks" approach, and also what I would recommend to myself if I could travel back in time. This impatient approach may not be the best for building a great startup, but it is the best for building a great entrepreneur.