I'm weird and want it to change based on the time of day :)
Morning/evening is for warm (and in some cases dim) light, during "work hours" I want the whitest of white lights and as bright as possible.
I just got Phillips Hue bulbs and they can do this, it's great (you need a command center thing, but it works pretty seemlessly).
I just got Phillips Hue bulbs and they can do this, it's great (you need a command center thing, but it works pretty seemlessly).