Housing's still cheaper than the Eastern States. If you drive to country towns the roadside fruit shops usually have better prices and fresher fruit than the supermarket. Petrol - if you collect supermarket vouchers, petrol's cheaper on tightarse Tuesday. There's an app that allows you to lock in the petrol price which is quite handy as well.
On Sundays now, provided you've a Smartrider card, travel into town via Transperth trains into and out of town is free. Always check junk mail specials for the latest offerings at supermarkets. If all else fails, stand for election, get into office and do sweet F. A. and earn shitloads of money. Hang around for a short while and you'll be on a very, very enviable pension. Don't fall into the trap of Ubering everywhere and Dan Murphy's usually has the best value for money when it comes to liquor.
Masturbation is still cheaper than pay for sex as well.