you can trade your bitcoin, or just hold it
i think trading is the best thing that allows you to make more bitcoins over time though it is just my opinion as i earn money with it
i think that signature campaigns might also give you a great opportunity to earn some bitcoins over time though the earnings would be really slow
you are right that we can earn free bitcoin in small amount for our pocket money through signature campaign and i think that trading is the best way to earn money in high profit .
you can earn a good amount every month from signature campaign, save a half and the remaining you can use for trade, and once you got good amount in trade make signature campaign earnings as full savings, if you follow this every month you can gain more.
yeah I also use that method I use a variety of methods including signature campaign. and then every bitcoin income will I collect after that I will convert 80% to fiat and use 20% for investment. yeah always like that in every month. I hope I can become rich with this method