The short answer is find a partner who is great at marketing, so he or she can add momentum to your ideas. It's tricky since they need to share your vision and belief that what you are creating is genuinely worthwhile.
Also - if you want to create something of real quality and value - then it helps to not have to worry about that money thang, at least for a while. So either have money, make money, find investors, or do what Larry and Sergei did - work on your PhD that you can one day commercialize.
If you are worried about making rent and getting food, then it's hard to truly create something of quality unless you have honed your craft and are in the service / agency business. Even then, its hard as heck.
Finally, quality isn't just craftsmanhip but also completeness. A chair can be of utmost quality but it's incomplete without a table. But completeness takes time. Say you wanted to create the perfect AI based mobile personal assistant, a la Siri. Can you truly make it high quality for every single use case? for someone searching restaurants in Austin to someone trying to find the latest NASCAR results? Probably not in a reasonable time frame. So you try and have a lot of discipline to tackle a very small surface area of the problem and then build from there. So in that little niche area, your solution is both quality and complete.
In my limited experience, identifying the niche and having the discipline to stick to it initially and gradually scale up from there is the hardest part of entrepreneurship.
Good luck creating quality. The world sure needs it.