Harvest Work - Accommodation
Some farms are so large that they need staffs of over 50 people to work for a few months straight to be able to get all their fruit off. Large farms often have housing and facilities to accomodate their large staffs. This is a very common practice in Victoria, and some of the farms in the middle of nowhere in Western Australia do this too.

Living on the farm will make saving your money very easy as you don't have to shell higher rent to a hostel and save on hostel transportation fees that might be as high as $4 per day. Rent on farms is sometimes free, and almost always cheap. I was paying $6 per night for a room on a pear farm, and people who had tents were paying a bit less. You'll get a bed (no linen and probably no pillow), a communal kitchen, and bathrooms. The farm I was on also had a common room with a TV, a few picnic tables, and even threw a party for us at the end of the season.

Be careful about which farm you chose to work for because some employ a lot of locals rather than backpackers. Australian fruit pickers (from my experiences) are usually very rowdy, and very scary, especially when they're drunk. The farm i was on actually had separate facilities for the Australians and the backpackers which worked well, except when the locals decided to come over for a visit while pissed.

If you're living on a farm, chances are you'll be in the middle of nowhere. If you don't have a car, you'll probably find yourself hitching into town to get supplies once a week. I did this in Victoria but always went with at least one other person, had no problems getting a ride, and never felt unsafe. The good thing about having to hitch to civilization is that you porbably won't want to go to town very often and will therefore more save money.