Well you can earn bonus credits by auctioning off things on the weekends. That's when most of my non digital delivery items pop up. I earn a lot just by drinking powerade zero and entering codes.
Try drinking a lot of that stuff even if you don't like it.My dad started drinking coke products so he could give the codes to me. I also collect can tabs though most of them are beer can tabs. Coke codes can easily go for 14,000 credits for 5 codes.
I drink mountain dew, Pepsi products, I having to have a needle stuck in my hip to see how my bones are doing,I have caticia & the doc said it was painful & I'm having it don't on Feb.1st that God I get my check that day.