There appear to be many ways of paying road tolls and I've read so many adverse reviews about them that I'm totally confused.
I'm arranging a motorhome tour for early next year from Cairns to Perth via Brisbane, Sydney, Melbourne, Adelaide and the Nullarbor. As a once-only user of the toll roads what's the best method for me to pay? Also, by by-passing the cities of Brisbane, Sydney and Melbourne that I've already visited (and accordingly they're not motorist friendly anyway) can I programme my GPS so as to avoid the toll roads altogether on my travels?
Any advice would be welcome, please.