- yes, at least for the next 12 months - probably, and I still have oDesk option :) - yes, spouse and son

But you decide to quit before your side business generate enough profit? What kind of things did you use to evaluate your decision?

Here's an approach: Put a number and a deadline on everything; this way you have a metric to hit rather than dealing with emotions.

So for example: Can you at least equal your current monthly income in X months? Make that a comfortable number so you don't run out of savings and have enough time to get a new job.

I would also have a metric on the burn rate of the company even if the overhead is low. Keep in mind you'll need to also be spending money on marketing, and the services of an accountant and the like. You don't need a 100 page business plan, but you do need a plan.

Also make sure that your spouse feels good about this, because being in a good emotional state is critical for the both of you.

I did something similar to it, calculated hom much time I would need to achieve the breakeven, marketing and media budget... But at the end is just a excel spreadsheet.

I was wondering if I should establish a indicator (like growth rate, revenue, etc) and just after achieve this number take the decision. Or maybe contract someone to do this sales and marketing stuff and wait until the company makes money.

Don't over think it — try and keep it simple: At first it's sink or swim — then worry about gold medals.