I have an intensive course running all day Sundays and was hoping to get some help on where to park all day for free on weekends - toward the Newtown end of the Darlington campus. Thanks.
Not sure of the usyd system, although if it is based on parking permits stickers, then you could always photograph one, print it out, laminate it and put that inside your window...
You need to pay everywhere within the uni, but outside uni grounds in side streets and things like that often have free parking. Or on parramatta road/city road in the bus lanes during the hours they're not designated bus lanes is free. You absolutely MUST keep a track of the time though or your car will be towed.