Ooh, I both love this thread and have additions, particularly number 1, which is my pet hate!
1) Fire Hazards. There are to be no Fire Hazards. I can tolerate mess on the floor, just about, but there must be clear, navigable access routes to the kitchen, bathroom, office (from there -> garden) and front door. Doubly so at night time. And when I say navigable, I don't mean pick your way through a debris field using a torch, I mean 'holy fucking shit, the house is on fire, get the fuck out right fucking now!' kind of navigation.
2) Double locking the front door at night will inspire DETH to be rained upon you in the form of my wrath. See point 1 for why.
3) Jacs and Jacs only, is allowed to do anything beyond look at his white work shirts. Any looking that is done, should preferably be undertaken with suitable wonder at their pristine whiteness and razor sharp creases.
4) Hands off Jacs's iron. We have a general use iron, and a TACTICAL Bosch. It is easily identified because the sole plate is spotless, it's extra long cable is neatly wound, and it's the awesome Bosch in TACTICAL black and grey. Never touch the TACTICAL Bosch.
5) Jacs 'on the tray' tools are there for all. If it's in a box/case, don't touch.
6) Jacs's shoe polish kit is for my use only.
7) I deal with the cat poo. You deal with kitchen bin.