Ask HN: How did you know it was time to quit your job and start your business?

For me it was important that there was no gap in my income since I have a family, but you may want to get feedback from others to ensure you're on the right track. Maybe even get one paying customer to ensure you can validate the business. The best validation of an idea is that someone is willing to pay for it.

When you saw yourself in the mirror..and couldn't stop smiling.