Doing signature campaigns is pretty safe to grow your bitcoins and with a good campaign it can be very profitable, what of course is important for us all.
Trading is also a option but the risks are pretty high and you can lose money from it real fast.
Signature campaigns are to EARN bitcoins but what you will do with the bitcoins so earned ? Thats called as growing bitcoins for example you earn bitcoin with signature campaign and then invest them in gambling sites so you are earning bitcoins and growing them too double impact Trading is also a option but the risks are pretty high and you can lose money from it real fast.
