PTC, voting and 2uHash
7 clicks a day x 200 satoshi click = 1400 satoshi
3 votes a day x 250 satoshi vote = 750 satoshi
$0.02 free 2uHash = around 2000 satoshi
Easily getting more than 4000 satoshi daily without investment. You have also the option to buy 2uHash power, getting your investment back in 6 to 9 months.
Then you should add referrals, PTP (1 satoshi every visit your link gets) and games (Rock-Paper-Scissor, Slot Machine and Guess the Number).
Proofs of payment in freebitcointalk forum: