Thermostat Woes

There is a rather large, overweight woman who works in the same part of the building I do. This woman has some sort of problem in that she stays hot all the time. It can be 20 degrees outside and she complains because the heat's on. She will, whenever she choses, flip the thermostat from heat to cool and doesn't even have the intelligence to move the thermostat off the 68 degree setting for the heat. In a while it's like a refrigerator in this office. I have spoken with her on more than one occasion but her attitude is that she has the right to be comfortable and be damned if everyone else is frozen. We are without boss now and the last one was too much of a wimp to say anything to her. I don't know where she gets off thinking she's the lord of the heating and air conditioning in this office, but it is very, very annoying. Of course, she is a very annoying person anyway. I could deal with it if we could reach some sort of compromise but that word ain't in her dictionary. Another little thing that happens is that she will leave (I leave before she does) and leave the air conditioner on so that the next morning the heat hasn't been on at all and it is freezing in here. We play this thermostat game all the time, summer and winter. It is my sincere hope that when they do hire a new boss he can help sort out a workable solution. In the meantime, it's either sit and try to endure it or play up and down with the thermostat all day.