> I feel that optimizing sub-$500 expenses is not the best use of one's time versus figuring out how to make money
Second this. You can only save so much, but there's practically no upper limit on how much you can make.
Plus making money is more fun than saving it. Saving generally requires sacrifices that decrease your quality of life. And there are diminishing returns, so you'll need to make ever-bigger sacrifices as continue to decrease your spending.