I am just doing some budgeting as I am buying my first house very soon (hopefully )

After ALL house bills (mortgage, gas, electric, council tax, insurance, tv license, phone, broadband etc) and ALL personal bills (car tax, insurance, mobile phone, petrol etc) and ALL food,

How much spending money do you need a month?

Would £1k of free spending money be enough?

What about if £1k had to be for me and the girlfriend? (Obviously she would be staying in ironing and cleaning whilst i'm out spending money )

Would I have to cancel all trackday dreams for the next 20 years?

How much do you home owners have spare each month after the bills (if you dont mind saying)

Thanks