Books that changed my way of thinking about money include, Rich Dad, Poor Dad, and, The Millionaire Mind, and even Dave Ramsey's book about eliminating debt, The Total Money Makeover. You would be surprised at the habits of many of America's millionaires. They DO sweat the small stuff, lol! They don't waste money they could be investing, an example of which is buying new cars. They buy good condition, low mileage, late-model used cars. The biggest chunk of the depreciation has already occurred, and major bugs or recalls have already been taken care of, so they are a better use of money than buying new.