Tower floors 3 and 4: The Robo Yeti Fun Parlour, and my garden parlour / seed storage. One thing I loved using my tower for was keeping a large supply of all the stuff you could buy at vendors. if I could buy it at a vendor, I would sell it for a currant or two more than my purchase price, and I made a small living that way, but for the most part I just liked having the extra room to store this stuff so I could keep the SDBs out of the house. Plus, one stop shopping!