I've same idea with you, I mostly earn bitcoin from signature campaigns because I've just known about bitcoin for 8 months so everything are new to me. I have to learn step by step. Actually, I've tried some ways else to make bitcoin like betting, investing in HYIP, clound mining,... But I have to amit that, they all fail and sometimes I lost all of my balance. So now i'm just saving my balance for trading, I'm learning about trading coin so maybe in some day, I will try