hmm.. i just did the comparison for us.. looked up our last 4 bills for more accuracy... but I was convinced that to save on electricity we would have to go on a fixed term contract.. which we don't do coz we're renting...

BUT.. turns out.. Origin have something that would save us $219 in the first year. But that's with 1 month free. And they don't have fixed term. So the next year would probably wouldn't save as much. Or there's one with Origin that is the same, but with 25% green energy.. saving in first year would be $161. So there ya go.

Altho, it's for households with no access to natural gas... not sure if that means the house isn't connected to gas, or if gas isn't in the area. I think natural gas is available in our street, just our house doens't have it.

ETA: Phone bills are one to definitely shop around for, but it all depends on your type of usage. But I bet there's loads of savings to be made on most people's phone bills.