Well, we don't have to wait to make our purchase. We haven't avoided paying for it. So any time that we can delay a purchase we save big time. It's really like buying something at wholesale prices. That's the type of saving that can add up quickly.
Cars are another fine example.
Suppose that you just made your last car payment. The temptation is great to check out the new models. Even after repairs you'll save a couple thousand dollars in that year. Also look to areas where you have discretionary expenses. That means areas where you have some level of control over what you spend.