I know this question may not seem to fit the format of this site perfectly, but I think it's definitely the right place to ask it from the perspective of getting the information I'm looking for (and I'm sure many others are wanting to know).

I would like to hear from some people who feel they've become adept at interviewing developers. What's the secret to making sure you hire someone whose work actually looks as good as their resume? Please try to keep your answers concise.

I understand this question has multiple answers and that's why it doesn't fit the format of this site well. So at least refrain from offering your opinions. Just offer any advice you've actually tried and have found to work well for you. And no linking to other resources. Only looking for personal experience.