We check out the three largest contributors to household spending in Australia and where people would source additional cash if living expenses rose. If you worked a full-time job in Australia in 1975, the average amount you would’ve earned a year was about $7,600, whereas today, that figure would be closer to $72,000, according to research by McCrindle. That’s welcome news, but while we’re earning more than what we did in 1975, things are also costing us more. A loaf of brea