Last fall my shared studio was sold and we all headed off in different directions. We knew this was going to happen so we were somewhat prepared. Rather than trying to find another space I set up for painting in the bay window in my living room. So far it's been working pretty well. We found an old desk in the park and I've covered it with white arena board.
It's really quite pleasant painting and seeing the kids playing in the front yard of the apartment building across the street.