It always drives me crazy when people that make 50k+ a year complain about not having money. I live on about $500-$600 a month and I'm fine. Granted, not everyone is ablebodied and living within biking distance of their school/work, but most certainly could be, especially with a little effort. Not needing money is incredibly liberating, I advise everyone to just try it for a year.
$100/mo for rice and beans, $70/mo for water,trash,electric,heat,telecom ; $400/mo for rent, ???
Do your kids have their own jobs? Your spouse doesn't, because someone has to watch the kids, and that is over $600/mo alone.