Direct debit is your friend. All my bills are on direct debit, either from a bank account or credit card, and then the credit card is also on DDebit.
House, camper, contents insurance, Medibank private ditto. Even my newspaper accounts. Rates and water, electricity and gas.
Obviously, you have to ensure that you've got the cash/credit in the account to be debited, but after that it's a no-brainer.
Cheers, Tony