“Saving 30% to 50% buying in bulk–replenishable items from toothpaste to soup, or whatever I use a lot of–is the best guaranteed return on investment you can get anywhere.”
Read more in a Q&A with Forbes. The quote above is in response to the question: “You have $100,000 – where do you put it?” To which Cuban first responds, quite sensibly:
First I pay off all my credit card debt and evaluate paying off any other debt I have. What I have left I put in the bank.