Not sure I can be much help, b/c I usually travel with just my daughter or my daughter and my niece, and for only 3-6 nights. However, I'm a hotel room neat freak.
My daughter and I completely unpack; my niece prefers to live out of her large duffel bag. I make good use of the closet and its shelf/shelves, which are out of sight (not sure if that is the case at the Mods) and of all the drawers; also, the top of the tv cabinet/armoire.
I set up a mini pantry in and around the fridge/coffeemaker; anything food-related goes there.
we put all dirty laundry in the plastic laundry bag provided (or a duffel bag, etc.) on the floor in the closet (I do laundry at least once if we stay 4+ days.)
Also, we drive down and I will often put (non-perishable!) items no longer needed in the car, to get them out of the room. This is usually done during split stays, when we will pack separate bags for each resort.
Suitcases we tend to keep near the sliding glass doors (if any) and they can be used for storage of souvenirs or any items not needed during the trip.
I tend to straighten up the room whenever we get back and before we leave for the parks/pool
Have a great time. 12 days!
