Over here, if you have a mortgage on your home and you can possibly work from home, the tax benefits are incredible. From that point of view, I'd work from home as much as possible if I were in your shoes. The cleaner is an excellent idea and nowhere near as risky as buying another property or renting office space.
Don't let you dream go though. Keep it alive...and let it motivate you.
I admire your desire to do something more than you are at present.