I would also add doling out favors to others thereby making others indebted to you thereby giving you the currency to extract favors from others in the future (with a reasonable interest rate of course) and therefore increase your "favors account receivables" part of your balance sheet...especially if the favor costs little to nothing to you yet means a lot to the counterparty - now THAT's profit...of course, only do this to those who will actually return the favor hence only do this to those with good karma....also only do this to those who actually have something (or could have something) to give back in terms of counterfavor otherwise you're just wasting your resources....