One thing that helped me was to move. That's obviously a big step. I was unmarried at the time, no kids, and knew I wanted something different, so I found a job

One thing that helped me was to move. That's obviously a big step. I was unmarried at the time, no kids, and knew I wanted something different, so I found a job in a new city and just packed up and moved. If that's not in the cards, maybe you could look slightly farther afield in your geographical area than you would normally, or look farther afield in your technical area than you normally would. It might also help to work on some either open source or other public-facing projects (assuming you can and they don't conflict with your current employment, etc.). Then you show that you have experience other than just what you might have from your day job.