For now my income is from working, but once I know my bitcoin mining to try to buy 2 units S5, apart from that I also look for bitcoin with faucet, giveaway and signature campaign. I am grateful for the bitcoin make extra income.
The best income comes from own jobs or business.
Bitcoin mining is good for those where electricity and other costs are cheap and affordable and the ROI happens within feasible time.
Faucets are according to me waste of time considering the amount of time invested in them and the amount won. Giveaways are also worthless.
Signature campaigns are worth it if you are a good quality poster and have ranked up in the forum.
But still the best thing is trading which is risky but worth it.