Like zarwill said, would be nice to make outside lamps light up only at night. It could be linked to a special generator, then activate it for all the lamps connected to it.
For indoor, again, like zarwill said, a sensor that you enter the bedroom and light ON.
A timer would be nice, this maybe could also be used for the outside lamps idea.
Also, a dimmer if it ever be possible (maybe somone might dont know, basically a dimmer is a device to control the lamp...