I say turn the closet into an incubator, if your breeding! I agree with the sink, ad a work table, a sliding cart that has supplies on it, so you don't have to go over to the table all the time, and to keep the tables clutter free.ad weather striping to the doors,install a thermo stat in the room, maybe add a TV, lol. A big rolling trash can, one marked for waste, and one marked for bedding, for storeage, a recycle bin for newspaper. Ok, I don't have anymore ideas left..I will post more if I remember them.