About 10 years ago and ten years into my career, I had been working and stayed at the same job way too long and both my salary and career stagnated.
I had two part time money making side projects. I was a part time fitness instructor and had some rental real estate.
Teaching fitness classes was fun, I made a lot of friends, and it gave me a release valve from working at a computer all day. Real estate was a headache.
Around 2008 -2011, a few things happened. The real estate market crashed and I did a few “strategic defaults”, I realized I could make a lot more by getting better at software engineering and job hopping, and I got married and gained a wife and two (step) children.
I gave up all of my side projects, concentrated on my career, started building a network of recruiters, former coworkers, and former managers and doubled my income over the next 8 years (not bragging, I still make about the average of principal engineer/architect/team lead in my area).
Even looking over the next two to five years, I should be able to increase my income by 50% (working for local companies) to well over 100% (if I can get into Amazon) as some type of cloud consultant, “digital transformation consultant”, or “Architect”. The only thing stopping me now is the travel requirements. I want to wait until my youngest completes high school.
But, that means I can’t juggle my job, family commitments, working out, filling in some technical gaps and a side job/business.
So no side business.