For additional earnings, you can apply for a Upromise Credit Card, where you'll earn an additional 5 % cash back on certain eligible purchases, 4 % at participating restaurants, 3 % on gas at eligible locations, 2 % at participating movie theaters and 1 % on everything else. (thesimpledollar.com)
Below are screenshots showing USDA eligible locations (everything except the tan areas). (themortgagereports.com)
You need to live in eligible locations in New South Wales, Victoria, Western Australia and South Australia. (consumerbadcreditguide.com)