A powerful digital water heater will be your angel during the winters = hot shower always! A swimming pool in the middle of the condominium will refresh during the hot summers. Plants not only purify the air for free - they're "tuff" ones, so you really do not need to water them (unless you really want to water them). In our digital days, the wifi promises high speed: 30MB/s. In the same spirit the digital TV can access Netflix (mine or yours) or Youtube direct from the remote control.