No nonsense: Mr Money Moustache and The Barefoot Investor and other FIRE (Financially independent, retire early) practitioners.
Australia-compatible online accounting
I was not impressed with Freshbooks last time I used it, seeming expensive while offering no more features than its competitors.
NB I am only very intermittently freelancing, so I care more about a low base-rate cost than a full-timer might.
Australian Superannuation tax optimising
Complicated, but there is a calculator if you are too lazy for an accountant: Super contributions optimiser.
The consumer-accessible Australian Ethical Investment is probably the easiest on-boarding for ethical consumption.
Wholsesale Fees are reasonable (loosely, if you have AUD25K or more).
Maximum happnesss for minimum expensditure
See optimal hedonism.