Yes, I was pretty vague, but I find good regular use for focal lengths ranging from 10mm to 135mm (on a crop body). I enjoy shooting a wide variety of subjects. Plus, I may be able to find some good deals which would allow me to experiment beyond that.
Maybe intentionally vague is still bad, though. So, to answer you question I mostly shoot portraits and environmental portraits. My most used focal lengths are in the 40-85mm range on a 60D.
But, I really am open to suggestions across the board. One of the great joys of photography is the endless possibilities, after all.