During my recruiting career I was always writing/editing resumes and giving job search advice to my candidates, but the job search advice was always awkward because I had "skin in the game" (potential fees). I never became comfortable with that process.
On the side I started a resume writing and career consulting business, and I decided a couple years ago to make that my full-time focus. At first I wasn't sure if I'd be able to maintain my income from recruiting (wife and 2 kids in an expensive area, special needs kids), but so far it looks like I'm on schedule to actually earn more.
Beyond the compensation, I find the work far more fulfilling. I'm working more hours than I used to, but I feel I'm actually helping people much more effectively. Hearing stories about how a resume and advice got someone their dream job feels good, and I'm also writing for some interesting people both in and out of tech.