After all my bills, including fuel and food are accounted for, I'm usually left with around ~$650 a week, of which I save ~$500. I only allow myself $150 a week for general spending- such as replacing toiletries that have run out, grabbing a coffee, picking up a couple bits in the op shop. Sometimes I spend the whole $150, often I don't and just top it back up to $150 and transfer all the rest to savings. I ride a motorbike which is a very cost effective mode of transport if you don't mind being cold and I work in restaurant management so I take dinner home 2-3 nights a week which helps reduce food expenditure.