The best way to earn enough bitcoins without job is by mining bitcoins, it is not need working 8-9 hours a week
we just do couples hours in one weeks, just doing control electric, connection of internet,
choose the pool of mining, choose the profitable coins to be mined ( depending on the hardware of miners Asics or GPU miners)
Or we can invest in cloud mining service although I don't recommend it because it is hard to return of investment.