<prompt> Human: Im terrible with money as I have horrible spending habits. My parents have done a great job teaching me the value of money as well as items but Im just so bad at saving money and Im going to college next year. My rule is that if I cannot buy at least two of something, then I should now buy one of them. For example, if I have 3k in the bank and I can afford a 2500 car, then I should not buy it because Id only have 500 left and what if that car needs fixes, oil changes, etc. I was wondering if anyone else has this sort of rule or something alike to it and if it works for them or not.  <response>: Good that you are thinking about these things. But in life things are a bit more complex. If you live with your parents perhaps they arent though. 