Even in tech, find some speciality market that isn't well-served by programmers already. My day job is information security, and our tool sets are atrocious. We use them because it's all we've got, and the security field isn't well known for being a software engineering powerhouse.

I could list off a ton of programs I'd love to have, but are way (way way way) too niche to pop up on the radar of anyone who doesn't work in security.