monkie,
I also express out most of the time, I'm taking care of the bb myself, while the elder goes to full time CC... my timing in the daytime is around 4 to 5 hrs, I don't pump at night.
I have 2 avent bottles for feeding, usu I don't sterilize the bottles immediately, after using both bottles then i sterilize.
Bb feeding time is quite accurate at 100ml per 3 hrs, sometimes even shorter so I lengthen my expressing time, usu 40 mins pump can have 90 to 110ml. The first thing in the morning I'll express out, abt 30 to 45 mins can get abt 200ml.
I spend my free time to do house chores, clear wardrobes or clear pregnancy things nowadays, surf net and watch DVD.