180 income: $6k/yr in oldest (now in 7th), $3600/yr in middle (now in 3rd grade), $3000/yr in youngest (now in 1st grade).
I'd like to start throwing more towards the oldest since we got a late start with hers, but it's tough while trying to max out retirement and put something away for vacations and home improvements. Oh yeah - can't forget the kids' expenses!