So what's one of the best investments where you can spend money on and save? A vasectomy! With the high cost of raising a child these days, some put it at $250,000 and I think it's closer to $70,000, one could save some serious dough by not having another child. We have seen this throughout the entire industrialized world, where the birthrate is not even high enough to maintain population.
So what's the ROI (return on investment) of a vasectomy? Well it'll cost you around 1 months worth of caring for a child. Score! And if you spend $250 now and it saves you $250,000 22 years later, that's a 99,900% return on your investment! Try getting that in the stock market!