Think you misunderstood. I am not claiming for a home office, because although technically i use one, i do not have any expense associated with it. I don't pay rent, or own the home I'm staying in.
As for your second point, that is my question i guess. What determines which is the primary place of business? I spend hours a day working from home, and then travel to the fields. Could argue that either is a primary place of business no?
