Its the same like asking whats your free money method; its obvious that there are no free btc methods, everything costs, and if it doesnt cost money, it definetly costs you your time. So the best thing is to find something you can do very well, and you can earn best odd time/btc.

Consider offering your services in the services section if you can do some translations (often there are bountys from altcoins for tos translations.etc), maybe you can code some simple scripts that someone might find handy..

There are some that find the golden pot, earning decent amounts with little effort, but those methods are either unethical, or users refuse to share to protect them from over saturation.

anyways, good luck in finding what suits you the most.

cheers