UM, twice a day at the moment after not much at all for the last 9years
As for housework, we have 5 children and we both just get in and do what needs doing around the house. Obviously when I am not working I can get alot of stuff done during the day but he by no means expects me to be superhuman. I try to get everything out of the way before he gets home so we can ALL relax but he definitely helps with the kids, doesn't just sit around until they are all in bed. WHen I am working (8 months a year) we have a cleaner to help lighten the load.
He needs to help you with the kids and understand that he needs to pitch in more.