Or, the HO, I suppose might work.
I take care of all the little things that happen in our household. Even though our health insurance is through the Evil Twin's employer, I'm the one who reads over the booklets and makes decisions each year regarding our health plan (they generally offer several different types of plans and the booklets go over all the deductibles, co-pays, services offered, etc.).
I'm the person who fixes lunches in the morning. For the Evil Twin, that usually means Monday, Tuesday, Thursday and Friday - on Wednesdays, he goes out with co-workers to a chinese buffet. For Buddy, it means just on any random day where the hot lunch offering is not something he wants.
If the Evil Twin's lunch plans differ on any given week, his co-workers will joke with him about "Running it by the Home Office". That would be me - the Home Office.
The Home Office makes many decisions, both large and small. The Home Office takes care of getting the bills paid on time and in full.
The Home Office scours the grocery circular to see what food items are on loss leader for any given week, clips coupons (as appropriate) and plans meals before the Monday shopping trip.
The Home is where the Heart is.