Of course I don't mean BTC Casinos or similar things. I know you can earn but can lose there as well.
do some faucet rotator,i think it can earn 0.001-0.003 per hour,and wait for bitcoin price really good,i think someday that amount will equal with $1
of course you must stay on your computer all day long. this is the simple way,but taken your time,i just do signature campaign.