I have similar problems with my wife. She thinks she "rules the roost," i.e. the home. If she wants to trash taken out, she demands it then--no matter what else is going on. If I initiate a project in the yard or around the house, she will jump on the bandwagon and assign me additional tasks which always pisses me off. Sounds like accessibility is part of the problem. If you work at home and are always available to her, that could be a key. In my case, I am retired and around the house a lot, so accessibility is certainly a problem in my case. You might consider doing your work somewhere else, maybe the public library or something