Right now I’ve got “The Millionaire Mind” on CD in my car. I’m on CD #7. The whole book is about what millionaires have in common (besides the obvious).
Most of them own their own businesses (and not particularly glamourous businesses).
They are relatively frugal.
They live below their means.
They are happily married.
This has been a really enlightening book and I highly recommend it. It’s a pretty easy “listen”.