Writing blog posts on shitty sites paid me $1-5 per post,
Using Twitter to tweet ads paid $0.90 per tweet,
Listing affiliate links on my blog earned me some cents,
Posting a Youtube video with ads on it earned me 3$ a month.
That's how far I got, lol
p.s. I guess you could try applying for a Game Tester from home job.
But they only pay like 12$/h and you could get some boring game to play,
like some sports game for example. You would have to run the same scenaro like 20 times,
hit the same wall or smth, just to record the video for the bug report - really boring.