This is the question I always ask: do you want to be an entrepreneur or do you want to work for yourself?

Being an entrepreneur is about being so passionate about a product or service that you, and only you, can produce that you're willing to move heaven and earth to get it out there. Working for yourself means freeing yourself from the shackles of pointy haired bosses and stupid corporate policies.

Being an entrepreneur means going for the startup (or opening that bakery or what-have-you); working for yourself means setting out a shingle and starting a consulting practice.

If it's a little bit of column A and a little bit of column B, do the consulting practice for a year, then start your product on the side after you've built up a base of clients to support yourself.