Aaron Patzer

Before Mint.com, I was a long-time user of 'Microsoft Money' and Intuit's 'Quicken.' Both were powerful tools, loaded with features and functionality around taxes, investment, budgeting - too feature-laden, in fact. They took hours to set up, forever to learn, and an hour a week to maintain.

The original idea before Mint was a life and goal planning system I called Carpe Viva. The idea was that all of life's goals, from buying a house, getting an MBA, or learning Spanish could be quantified in both time and money.

Carefully calculate the potential size of your market to make sure you can grow. Before starting Mint, I knew that there were about 20 million people who had purchased 'Quicken' or 'Microsoft Money' over the years, and 80 million people using online banking in the U.S. alone.

I always knew I wanted to be a technologist, so I went to Duke and got a degree in computer science and electrical engineering. Really, I thought my goal in life was to be an inventor, a problem solver, so I thought I needed a Ph.D. to be good at inventions, but it turns out that you don't.

I've actually started a number of businesses in my career. So I'm 28 currently, but when I was about 16, I started building Websites, and that's how I put myself through school. I went to Duke with a degree in electrical engineering, computer science, computer engineering, and then to Princeton.

After building most of Mint.com's prototype by myself, I talked to anyone and everyone I knew about Mint. It's counter-intuitive, because you might fear someone will steal your idea, but it's the only way to make connections, be sure you're on the right track, and provide a solution for an audience broader than yourself.

I know it sounds weird, but the food that I eat, it doesn't make a big difference, and it never has. So, I've saved a ton of money not buying a lot of alcohol, not going out to restaurants too much. So, I think it's part of our culture, and it's part of a social activity more than anything else.

If you pay your credit card off every month, get a rewards card. One that gives you airline miles or that will give you 1 percent cash back at least on every purchase.

I wanted to build a tool for my generation: people 20 to 40 who don't want to spend time balancing a checkbook or checking multiple financial institutions' websites. Mint does just that, giving comprehensive, quick insights into a user's finances from their computer, mobile phone and/or tablet.

I pitch Mint to everyone from investors to engineers, young and old, and I do it pretty much the same way: Here's the problem in the market place, here's how we solve it, and here's how we make money.

Mint is designed to put your finances on auto-pilot. Whether you log in or not, it will send you a weekly summary of your balances and biggest purchases, and how your investments and budgets are doing, along with sending you alerts on unusual spending and low balances.

The start-up life kept me busy and surfaced the problem of not being able to stay on top of my personal finances, which led me to invent Mint.com. I was working 80-hour weeks, and had done enough preliminary work and research to know I had a big idea: To make money management effortless and automated.