I think the great way to make bitcoin is by joining some campaign in this forum and also doing an alt-coin trading,
The first thing that comes in to my mind is campaign because you could earn some free token or bitcoin by just joining them ,
Second is trading this would be a great way if you have some skills .
I agree with you, the campaign is always the most preferred job for earning bitcoin free, the most important thing is that we need patience and hard work, write post per day to upgrade the rank because if we do not invest money, we will need to invest time and effort, that is a sure thing. In addition, we should use social accounts with large amounts of followers to participate in social campaigns altcoin, that is where we can rely on luck to earn a large amount of Bitcoin, trading is also a good way, but we need to learn the analytical methods before we engage to minimize risks