Technically, my ratties are in the computer room. What has actually happened,however, is that my computer is now squeezed into a corner of the rat room. Their stuff is expanding into the hallway and the linen closet. Because their room is full, I have to put their playpen in the space between the kitchen and the TV area. So I could say that they are beginning to take over the whole house!
p.s. SoA, how do you keep your bedroom looking so tidy with that giant rat cage in it? Mine would have raisins and litter bits flung all over the place!