I am a creature of routine. I cannot tell if I have always been this way or if I were driven to it by having children.
I find my children thrive in routine - regular meal times, set bedtimes, a structured pattern to the rest and play of their day. My own children are so driven by routine that even on vacation, far from home, my daughter will ask "Where will we have quiet time after lunch today, Mommy?"
If my two-year-old doesn't nap, my eye starts twitching. And if we don't go to the library on Tuesdays, then the whole day is off-kilter.