Garage sales, swap meets or car boot sales. Gather anything that you don't want then put ads on gumtree, newspapers and put signs around the place. Then hold a garage sale, be prepared to do a lot of sitting around. On the upside I earn about $80-$100. I also have another suggestion. Do you have a talent?... Singing, dancing, acrobatics or anything else! Busking! it's a great way to earn money. One thing is you have to get a lilicenceut that's simple. My friend earned bout $100 busking at a festival.