well i'm not going to be as detailed as the other people, but usually after expenses I have about a hundred per week for gas and flex. gas is five bucks a day or more b/c i have a super long commute. other than that it's not too bad, though groceries come out of that too. I actually had a thread similar to this, though yours was better b/c it posted a legit question.
http://www.tfproject.org/tfp/general...le-income.html Since that thread however my SO became gainfully employed, upping my "disposable" income somewhat.