I use 8 per day per kid (2 in diapers full time), plus my older DS who wears a cloth pullup every night. So 18 per day at this house. I figured put once that between the cost o diapers and pullups, I would spend just over $4.00/day on disposables, based on a $0.22 diaper and a $0.50 pullup. So it would be nearly $1500 a year, and that isn't even including wipes. cloth is way cheaper for us.
Mom of 4!