I was doing it at my house until this week. My house isn't zoned for business and someone reported me to the town inspector.
Anyway, I guess you go about it the same way you would if you were setting up shop somewhere, except maybe smaller. i.e. I was using a Big Green Clean Machine instead of a bigger steam extractor, and I had a small air compressor. If you don't have a garage big enough to work in, I'd also suggest a car port for sure.