More options indeed possible but I think that trading is a good one and maybe some sig campaigns are also a smart thing to do.
Trading and signature campaigns should not be considered a stable income, trading is similar to gambling and a signature campaign can end at any time as stated above. Although the campaign i am in has been stable for a long time now so it does not apply to all of them.
I agree, sig campaigns and trading is not a way to have stable income. In trading there is no stable amount of profit daily and sometimes you also lose money from it because trading is very unpredictable. Sig campaigns can be stable if you are at a good campaign but it doesn't give you much what you want.