Everyone has different ideas about how to spend money wisely. Some like to invest and save, while others have a habit of spending too much.
"Living stingy" means something different to everyone. If you're already pretty frugal, living stingy could mean cutting back on some groceries, or attempting to cut back the electric bill. If you're used to living the life of luxury, living stingy could mean eliminating going out to dinner or buying a car with a lower monthly payment (or no payment).