I use a home office 1 day a week and rent space from a co-working place in Boston. Benefits are great, I get unlimited conference room use in any of their buildings in the boston area. So withing a 50 mile radius of my office I have access to buildings that I can use. I usually use the building near my home, but sometimes I don't. I have 2 part time staff, they typically use the building near their home. We communicate virtually. If I need to add more staff, I don't have to worry about space, copier, parking, internet. I will just hire someone and they can pick which building they prefer.
Some buildings also come with showers so if my wife kick me out one day, thats my insurance policy instead of hotel or calling one of my buddies.
Now If I wanted to really grow my business in California, no problem, I would just set up part time membership with one of the co-working places in LA or Bay area and rent access by the day.
Co-working probably does not work for P&C line, but for large life cases, it is an excellent environment.
That is an ideal setup, and those seem to be prevalent in the populated areas. In small town usa, they are few and far between. A friend of mine that lives in a more populated area does the same thing, she is happy with that.
Note to self: if I ever do go that route, get one with a shower