Fly indirect, ie, MEL - SYD - BNE if schedueling allow.
Fly a higher class of fare, elevate, rather than getaway on domestic flights, (more expensive), elevate will give you more status credits, not so much points, status credits are the ways to get to {free} lounge entry, ie, if you keep flying VA and amass 500 VFF SC, you get lounge access as VFF SG, so this status is of more importance than points accrual, don't fly Tiger, fly SQ if you have to fly overseas, buy all your groceries from Coles ensuring you have linked your FB points to VFF, buy all your petrol for car from BP...
Don't think there are any more utility usage points accrual direct 1:1 points anymore.
If you have an employer provided card, that is good, but be aware of not misusing it. **(EDIT: ah, private credit card, I burned my bridges there, got a credit card, went over the top into the thousands, into the red, got pulled out of the debt, haven't done credit cards after that... try out google search, the info is out there, but the fees can be $199/$299, and points earn per $1 spent these days are 0.25/0.50/0.75 for visa, and 1.25 for amex, but some places don't take amex).**
Avoid buying points from any source apart from VFF, you can transfer points between family members, but avoid doing that with others, there are means to do it, but ideally, don't do transfers that are iffy.
Check out acronyms on this website if you are not sure of our codings, ...
NR-you still start VFF with that, 250 SC and you will get VFF PS, (2 lounge entries for free), 500 SC and you get VFF SG, lounge entry for the next 12 months after you make SG...