Some people have some success buying stuff at garage sales, thrift stores, etc and reselling it on ebay, etc. Not sure this fits your definition of "easy" though.
No. I'm confined to a wheel chair so I could do that, but they're all scams.
No. If there were, no one would do anything else online.
Common sense should tell you that if you could we would all be doing it.
upwork.com formerly odesk
